switch to vuepress

75 files changed, 805 insertions, 0 deletions

diff --git a/node_modules/es5-ext/math/_decimal-adjust.js b/node_modules/es5-ext/math/_decimal-adjust.js
new file mode 100644
index 00000000..fd0b0025
--- /dev/null
+++ b/node_modules/es5-ext/math/_decimal-adjust.js
@@ -0,0 +1,29 @@
+// Credit:
+// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/round
+// #Decimal_rounding
+
+"use strict";
+
+var isValue       = require("../object/is-value")
+  , ensureInteger = require("../object/ensure-integer");
+
+var split = String.prototype.split;
+
+module.exports = function (type) {
+	return function (value/*, exp*/) {
+		value = Number(value);
+		var exp = arguments[1];
+		if (isValue(exp)) exp = ensureInteger(exp);
+		if (!value) return value;
+		if (!exp) return Math[type](value);
+		if (!isFinite(value)) return value;
+
+		// Shift
+		var tokens = split.call(value, "e");
+		value = Math[type](tokens[0] + "e" + ((tokens[1] || 0) - exp));
+
+		// Shift back
+		tokens = value.toString().split("e");
+		return Number(tokens[0] + "e" + (Number(tokens[1] || 0) + exp));
+	};
+};
diff --git a/node_modules/es5-ext/math/_pack-ieee754.js b/node_modules/es5-ext/math/_pack-ieee754.js
new file mode 100644
index 00000000..b77bc8d4
--- /dev/null
+++ b/node_modules/es5-ext/math/_pack-ieee754.js
@@ -0,0 +1,88 @@
+/* eslint no-bitwise: "off" */
+// Credit: https://github.com/paulmillr/es6-shim/
+
+"use strict";
+
+var abs = Math.abs
+  , floor = Math.floor
+  , log = Math.log
+  , min = Math.min
+  , pow = Math.pow
+  , LN2 = Math.LN2
+  , roundToEven;
+
+roundToEven = function (num) {
+	var whole = floor(num), fraction = num - whole;
+	if (fraction < 0.5) return whole;
+	if (fraction > 0.5) return whole + 1;
+	return whole % 2 ? whole + 1 : whole;
+};
+
+// eslint-disable-next-line max-statements
+module.exports = function (value, ebits, fbits) {
+	var bias = (1 << (ebits - 1)) - 1, sign, e, fraction, i, bits, str, bytes;
+
+	// Compute sign, exponent, fraction
+	if (isNaN(value)) {
+		// NaN
+		// http://dev.w3.org/2006/webapi/WebIDL/#es-type-mapping
+		e = (1 << ebits) - 1;
+		fraction = pow(2, fbits - 1);
+		sign = 0;
+	} else if (value === Infinity || value === -Infinity) {
+		e = (1 << ebits) - 1;
+		fraction = 0;
+		sign = value < 0 ? 1 : 0;
+	} else if (value === 0) {
+		e = 0;
+		fraction = 0;
+		sign = 1 / value === -Infinity ? 1 : 0;
+	} else {
+		sign = value < 0;
+		value = abs(value);
+
+		if (value >= pow(2, 1 - bias)) {
+			e = min(floor(log(value) / LN2), 1023);
+			fraction = roundToEven(value / pow(2, e) * pow(2, fbits));
+			if (fraction / pow(2, fbits) >= 2) {
+				e += 1;
+				fraction = 1;
+			}
+			if (e > bias) {
+				// Overflow
+				e = (1 << ebits) - 1;
+				fraction = 0;
+			} else {
+				// Normal
+				e += bias;
+				fraction -= pow(2, fbits);
+			}
+		} else {
+			// Subnormal
+			e = 0;
+			fraction = roundToEven(value / pow(2, 1 - bias - fbits));
+		}
+	}
+
+	// Pack sign, exponent, fraction
+	bits = [];
+	for (i = fbits; i; i -= 1) {
+		bits.push(fraction % 2 ? 1 : 0);
+		fraction = floor(fraction / 2);
+	}
+	for (i = ebits; i; i -= 1) {
+		bits.push(e % 2 ? 1 : 0);
+		e = floor(e / 2);
+	}
+	bits.push(sign ? 1 : 0);
+	bits.reverse();
+	str = bits.join("");
+
+	// Bits to bytes
+	bytes = [];
+	while (str.length) {
+		bytes.push(parseInt(str.substring(0, 8), 2));
+		str = str.substring(8);
+	}
+	return bytes;
+};
diff --git a/node_modules/es5-ext/math/_unpack-ieee754.js b/node_modules/es5-ext/math/_unpack-ieee754.js
new file mode 100644
index 00000000..83fa9475
--- /dev/null
+++ b/node_modules/es5-ext/math/_unpack-ieee754.js
@@ -0,0 +1,33 @@
+/* eslint no-bitwise: "off" */
+// Credit: https://github.com/paulmillr/es6-shim/
+
+"use strict";
+
+var pow = Math.pow;
+
+module.exports = function (bytes, ebits, fbits) {
+	// Bytes to bits
+	var bits = [], i, j, bit, str, bias, sign, e, fraction;
+
+	for (i = bytes.length; i; i -= 1) {
+		bit = bytes[i - 1];
+		for (j = 8; j; j -= 1) {
+			bits.push(bit % 2 ? 1 : 0);
+			bit >>= 1;
+		}
+	}
+	bits.reverse();
+	str = bits.join("");
+
+	// Unpack sign, exponent, fraction
+	bias = (1 << (ebits - 1)) - 1;
+	sign = parseInt(str.substring(0, 1), 2) ? -1 : 1;
+	e = parseInt(str.substring(1, 1 + ebits), 2);
+	fraction = parseInt(str.substring(1 + ebits), 2);
+
+	// Produce number
+	if (e === (1 << ebits) - 1) return fraction === 0 ? sign * Infinity : NaN;
+	if (e > 0) return sign * pow(2, e - bias) * (1 + fraction / pow(2, fbits));
+	if (fraction !== 0) return sign * pow(2, -(bias - 1)) * (fraction / pow(2, fbits));
+	return sign < 0 ? -0 : 0;
+};
diff --git a/node_modules/es5-ext/math/acosh/implement.js b/node_modules/es5-ext/math/acosh/implement.js
new file mode 100644
index 00000000..ea75c7d1
--- /dev/null
+++ b/node_modules/es5-ext/math/acosh/implement.js
@@ -0,0 +1,8 @@
+"use strict";
+
+if (!require("./is-implemented")()) {
+	Object.defineProperty(Math, "acosh", { value: require("./shim"),
+		configurable: true,
+enumerable: false,
+writable: true });
+}
diff --git a/node_modules/es5-ext/math/acosh/index.js b/node_modules/es5-ext/math/acosh/index.js
new file mode 100644
index 00000000..160f6b99
--- /dev/null
+++ b/node_modules/es5-ext/math/acosh/index.js
@@ -0,0 +1,5 @@
+"use strict";
+
+module.exports = require("./is-implemented")()
+	? Math.acosh
+	: require("./shim");
diff --git a/node_modules/es5-ext/math/acosh/is-implemented.js b/node_modules/es5-ext/math/acosh/is-implemented.js
new file mode 100644
index 00000000..2e973013
--- /dev/null
+++ b/node_modules/es5-ext/math/acosh/is-implemented.js
@@ -0,0 +1,7 @@
+"use strict";
+
+module.exports = function () {
+	var acosh = Math.acosh;
+	if (typeof acosh !== "function") return false;
+	return acosh(2) === 1.3169578969248166;
+};
diff --git a/node_modules/es5-ext/math/acosh/shim.js b/node_modules/es5-ext/math/acosh/shim.js
new file mode 100644
index 00000000..3e632ffb
--- /dev/null
+++ b/node_modules/es5-ext/math/acosh/shim.js
@@ -0,0 +1,12 @@
+"use strict";
+
+var log = Math.log, sqrt = Math.sqrt;
+
+module.exports = function (value) {
+	if (isNaN(value)) return NaN;
+	value = Number(value);
+	if (value < 1) return NaN;
+	if (value === 1) return 0;
+	if (value === Infinity) return value;
+	return log(value + sqrt(value * value - 1));
+};
diff --git a/node_modules/es5-ext/math/asinh/implement.js b/node_modules/es5-ext/math/asinh/implement.js
new file mode 100644
index 00000000..efa6704e
--- /dev/null
+++ b/node_modules/es5-ext/math/asinh/implement.js
@@ -0,0 +1,8 @@
+"use strict";
+
+if (!require("./is-implemented")()) {
+	Object.defineProperty(Math, "asinh", { value: require("./shim"),
+		configurable: true,
+enumerable: false,
+writable: true });
+}
diff --git a/node_modules/es5-ext/math/asinh/index.js b/node_modules/es5-ext/math/asinh/index.js
new file mode 100644
index 00000000..b5fb120f
--- /dev/null
+++ b/node_modules/es5-ext/math/asinh/index.js
@@ -0,0 +1,5 @@
+"use strict";
+
+module.exports = require("./is-implemented")()
+	? Math.asinh
+	: require("./shim");
diff --git a/node_modules/es5-ext/math/asinh/is-implemented.js b/node_modules/es5-ext/math/asinh/is-implemented.js
new file mode 100644
index 00000000..a7e0f20f
--- /dev/null
+++ b/node_modules/es5-ext/math/asinh/is-implemented.js
@@ -0,0 +1,7 @@
+"use strict";
+
+module.exports = function () {
+	var asinh = Math.asinh;
+	if (typeof asinh !== "function") return false;
+	return asinh(2) === 1.4436354751788103;
+};
diff --git a/node_modules/es5-ext/math/asinh/shim.js b/node_modules/es5-ext/math/asinh/shim.js
new file mode 100644
index 00000000..30ce2e4d
--- /dev/null
+++ b/node_modules/es5-ext/math/asinh/shim.js
@@ -0,0 +1,15 @@
+"use strict";
+
+var log = Math.log, sqrt = Math.sqrt;
+
+module.exports = function (value) {
+	if (isNaN(value)) return NaN;
+	value = Number(value);
+	if (value === 0) return value;
+	if (!isFinite(value)) return value;
+	if (value < 0) {
+		value = -value;
+		return -log(value + sqrt(value * value + 1));
+	}
+	return log(value + sqrt(value * value + 1));
+};
diff --git a/node_modules/es5-ext/math/atanh/implement.js b/node_modules/es5-ext/math/atanh/implement.js
new file mode 100644
index 00000000..47d5cc22
--- /dev/null
+++ b/node_modules/es5-ext/math/atanh/implement.js
@@ -0,0 +1,8 @@
+"use strict";
+
+if (!require("./is-implemented")()) {
+	Object.defineProperty(Math, "atanh", { value: require("./shim"),
+		configurable: true,
+enumerable: false,
+writable: true });
+}
diff --git a/node_modules/es5-ext/math/atanh/index.js b/node_modules/es5-ext/math/atanh/index.js
new file mode 100644
index 00000000..51fbcd66
--- /dev/null
+++ b/node_modules/es5-ext/math/atanh/index.js
@@ -0,0 +1,5 @@
+"use strict";
+
+module.exports = require("./is-implemented")()
+	? Math.atanh
+	: require("./shim");
diff --git a/node_modules/es5-ext/math/atanh/is-implemented.js b/node_modules/es5-ext/math/atanh/is-implemented.js
new file mode 100644
index 00000000..4787c4fa
--- /dev/null
+++ b/node_modules/es5-ext/math/atanh/is-implemented.js
@@ -0,0 +1,7 @@
+"use strict";
+
+module.exports = function () {
+	var atanh = Math.atanh;
+	if (typeof atanh !== "function") return false;
+	return Math.round(atanh(0.5) * 1e15) === 549306144334055;
+};
diff --git a/node_modules/es5-ext/math/atanh/shim.js b/node_modules/es5-ext/math/atanh/shim.js
new file mode 100644
index 00000000..9383e971
--- /dev/null
+++ b/node_modules/es5-ext/math/atanh/shim.js
@@ -0,0 +1,14 @@
+"use strict";
+
+var log = Math.log;
+
+module.exports = function (value) {
+	if (isNaN(value)) return NaN;
+	value = Number(value);
+	if (value < -1) return NaN;
+	if (value > 1) return NaN;
+	if (value === -1) return -Infinity;
+	if (value === 1) return Infinity;
+	if (value === 0) return value;
+	return 0.5 * log((1 + value) / (1 - value));
+};
diff --git a/node_modules/es5-ext/math/cbrt/implement.js b/node_modules/es5-ext/math/cbrt/implement.js
new file mode 100644
index 00000000..f5adbab0
--- /dev/null
+++ b/node_modules/es5-ext/math/cbrt/implement.js
@@ -0,0 +1,8 @@
+"use strict";
+
+if (!require("./is-implemented")()) {
+	Object.defineProperty(Math, "cbrt", { value: require("./shim"),
+		configurable: true,
+enumerable: false,
+writable: true });
+}
diff --git a/node_modules/es5-ext/math/cbrt/index.js b/node_modules/es5-ext/math/cbrt/index.js
new file mode 100644
index 00000000..47806407
--- /dev/null
+++ b/node_modules/es5-ext/math/cbrt/index.js
@@ -0,0 +1,5 @@
+"use strict";
+
+module.exports = require("./is-implemented")()
+	? Math.cbrt
+	: require("./shim");
diff --git a/node_modules/es5-ext/math/cbrt/is-implemented.js b/node_modules/es5-ext/math/cbrt/is-implemented.js
new file mode 100644
index 00000000..a8ac0db2
--- /dev/null
+++ b/node_modules/es5-ext/math/cbrt/is-implemented.js
@@ -0,0 +1,7 @@
+"use strict";
+
+module.exports = function () {
+	var cbrt = Math.cbrt;
+	if (typeof cbrt !== "function") return false;
+	return cbrt(2) === 1.2599210498948732;
+};
diff --git a/node_modules/es5-ext/math/cbrt/shim.js b/node_modules/es5-ext/math/cbrt/shim.js
new file mode 100644
index 00000000..8871c552
--- /dev/null
+++ b/node_modules/es5-ext/math/cbrt/shim.js
@@ -0,0 +1,12 @@
+"use strict";
+
+var pow = Math.pow;
+
+module.exports = function (value) {
+	if (isNaN(value)) return NaN;
+	value = Number(value);
+	if (value === 0) return value;
+	if (!isFinite(value)) return value;
+	if (value < 0) return -pow(-value, 1 / 3);
+	return pow(value, 1 / 3);
+};
diff --git a/node_modules/es5-ext/math/ceil-10.js b/node_modules/es5-ext/math/ceil-10.js
new file mode 100644
index 00000000..351221f6
--- /dev/null
+++ b/node_modules/es5-ext/math/ceil-10.js
@@ -0,0 +1,3 @@
+"use strict";
+
+module.exports = require("./_decimal-adjust")("ceil");
diff --git a/node_modules/es5-ext/math/clz32/implement.js b/node_modules/es5-ext/math/clz32/implement.js
new file mode 100644
index 00000000..10b4a41d
--- /dev/null
+++ b/node_modules/es5-ext/math/clz32/implement.js
@@ -0,0 +1,8 @@
+"use strict";
+
+if (!require("./is-implemented")()) {
+	Object.defineProperty(Math, "clz32", { value: require("./shim"),
+		configurable: true,
+enumerable: false,
+writable: true });
+}
diff --git a/node_modules/es5-ext/math/clz32/index.js b/node_modules/es5-ext/math/clz32/index.js
new file mode 100644
index 00000000..a16ee33a
--- /dev/null
+++ b/node_modules/es5-ext/math/clz32/index.js
@@ -0,0 +1,5 @@
+"use strict";
+
+module.exports = require("./is-implemented")()
+	? Math.clz32
+	: require("./shim");
diff --git a/node_modules/es5-ext/math/clz32/is-implemented.js b/node_modules/es5-ext/math/clz32/is-implemented.js
new file mode 100644
index 00000000..ee6d8828
--- /dev/null
+++ b/node_modules/es5-ext/math/clz32/is-implemented.js
@@ -0,0 +1,7 @@
+"use strict";
+
+module.exports = function () {
+	var clz32 = Math.clz32;
+	if (typeof clz32 !== "function") return false;
+	return clz32(1000) === 22;
+};
diff --git a/node_modules/es5-ext/math/clz32/shim.js b/node_modules/es5-ext/math/clz32/shim.js
new file mode 100644
index 00000000..2b526c2c
--- /dev/null
+++ b/node_modules/es5-ext/math/clz32/shim.js
@@ -0,0 +1,7 @@
+"use strict";
+
+module.exports = function (value) {
+	// eslint-disable-next-line no-bitwise
+	value >>>= 0;
+	return value ? 32 - value.toString(2).length : 32;
+};
diff --git a/node_modules/es5-ext/math/cosh/implement.js b/node_modules/es5-ext/math/cosh/implement.js
new file mode 100644
index 00000000..6f42b387
--- /dev/null
+++ b/node_modules/es5-ext/math/cosh/implement.js
@@ -0,0 +1,8 @@
+"use strict";
+
+if (!require("./is-implemented")()) {
+	Object.defineProperty(Math, "cosh", { value: require("./shim"),
+		configurable: true,
+enumerable: false,
+writable: true });
+}
diff --git a/node_modules/es5-ext/math/cosh/index.js b/node_modules/es5-ext/math/cosh/index.js
new file mode 100644
index 00000000..5ed349af
--- /dev/null
+++ b/node_modules/es5-ext/math/cosh/index.js
@@ -0,0 +1,5 @@
+"use strict";
+
+module.exports = require("./is-implemented")()
+	? Math.cosh
+	: require("./shim");
diff --git a/node_modules/es5-ext/math/cosh/is-implemented.js b/node_modules/es5-ext/math/cosh/is-implemented.js
new file mode 100644
index 00000000..7173054c
--- /dev/null
+++ b/node_modules/es5-ext/math/cosh/is-implemented.js
@@ -0,0 +1,7 @@
+"use strict";
+
+module.exports = function () {
+	var cosh = Math.cosh;
+	if (typeof cosh !== "function") return false;
+	return cosh(1) === 1.5430806348152437;
+};
diff --git a/node_modules/es5-ext/math/cosh/shim.js b/node_modules/es5-ext/math/cosh/shim.js
new file mode 100644
index 00000000..c762c84d
--- /dev/null
+++ b/node_modules/es5-ext/math/cosh/shim.js
@@ -0,0 +1,11 @@
+"use strict";
+
+var exp = Math.exp;
+
+module.exports = function (value) {
+	if (isNaN(value)) return NaN;
+	value = Number(value);
+	if (value === 0) return 1;
+	if (!isFinite(value)) return Infinity;
+	return (exp(value) + exp(-value)) / 2;
+};
diff --git a/node_modules/es5-ext/math/expm1/implement.js b/node_modules/es5-ext/math/expm1/implement.js
new file mode 100644
index 00000000..8c9d8111
--- /dev/null
+++ b/node_modules/es5-ext/math/expm1/implement.js
@@ -0,0 +1,8 @@
+"use strict";
+
+if (!require("./is-implemented")()) {
+	Object.defineProperty(Math, "expm1", { value: require("./shim"),
+		configurable: true,
+enumerable: false,
+writable: true });
+}
diff --git a/node_modules/es5-ext/math/expm1/index.js b/node_modules/es5-ext/math/expm1/index.js
new file mode 100644
index 00000000..5b5dff6b
--- /dev/null
+++ b/node_modules/es5-ext/math/expm1/index.js
@@ -0,0 +1,5 @@
+"use strict";
+
+module.exports = require("./is-implemented")()
+	? Math.expm1
+	: require("./shim");
diff --git a/node_modules/es5-ext/math/expm1/is-implemented.js b/node_modules/es5-ext/math/expm1/is-implemented.js
new file mode 100644
index 00000000..dfd056e0
--- /dev/null
+++ b/node_modules/es5-ext/math/expm1/is-implemented.js
@@ -0,0 +1,7 @@
+"use strict";
+
+module.exports = function () {
+	var expm1 = Math.expm1;
+	if (typeof expm1 !== "function") return false;
+	return expm1(1).toFixed(15) === "1.718281828459045";
+};
diff --git a/node_modules/es5-ext/math/expm1/shim.js b/node_modules/es5-ext/math/expm1/shim.js
new file mode 100644
index 00000000..ce737b3b
--- /dev/null
+++ b/node_modules/es5-ext/math/expm1/shim.js
@@ -0,0 +1,16 @@
+// Thanks: https://github.com/monolithed/ECMAScript-6
+
+"use strict";
+
+var exp = Math.exp;
+
+module.exports = function (value) {
+	if (isNaN(value)) return NaN;
+	value = Number(value);
+	if (value === 0) return value;
+	if (value === Infinity) return Infinity;
+	if (value === -Infinity) return -1;
+
+	if (value > -1.0e-6 && value < 1.0e-6) return value + value * value / 2;
+	return exp(value) - 1;
+};
diff --git a/node_modules/es5-ext/math/floor-10.js b/node_modules/es5-ext/math/floor-10.js
new file mode 100644
index 00000000..3cb0c119
--- /dev/null
+++ b/node_modules/es5-ext/math/floor-10.js
@@ -0,0 +1,3 @@
+"use strict";
+
+module.exports = require("./_decimal-adjust")("floor");
diff --git a/node_modules/es5-ext/math/fround/implement.js b/node_modules/es5-ext/math/fround/implement.js
new file mode 100644
index 00000000..b54d2fca
--- /dev/null
+++ b/node_modules/es5-ext/math/fround/implement.js
@@ -0,0 +1,8 @@
+"use strict";
+
+if (!require("./is-implemented")()) {
+	Object.defineProperty(Math, "fround", { value: require("./shim"),
+		configurable: true,
+enumerable: false,
+writable: true });
+}
diff --git a/node_modules/es5-ext/math/fround/index.js b/node_modules/es5-ext/math/fround/index.js
new file mode 100644
index 00000000..db409e83
--- /dev/null
+++ b/node_modules/es5-ext/math/fround/index.js
@@ -0,0 +1,5 @@
+"use strict";
+
+module.exports = require("./is-implemented")()
+	? Math.fround
+	: require("./shim");
diff --git a/node_modules/es5-ext/math/fround/is-implemented.js b/node_modules/es5-ext/math/fround/is-implemented.js
new file mode 100644
index 00000000..ad2b705d
--- /dev/null
+++ b/node_modules/es5-ext/math/fround/is-implemented.js
@@ -0,0 +1,7 @@
+"use strict";
+
+module.exports = function () {
+	var fround = Math.fround;
+	if (typeof fround !== "function") return false;
+	return fround(1.337) === 1.3370000123977661;
+};
diff --git a/node_modules/es5-ext/math/fround/shim.js b/node_modules/es5-ext/math/fround/shim.js
new file mode 100644
index 00000000..bfbc54c6
--- /dev/null
+++ b/node_modules/es5-ext/math/fround/shim.js
@@ -0,0 +1,35 @@
+/* global Float32Array */
+
+// Credit: https://github.com/paulmillr/es6-shim/blob/master/es6-shim.js
+
+"use strict";
+
+var toFloat32;
+
+if (typeof Float32Array === "undefined") {
+	toFloat32 = (function () {
+		var pack   = require("../_pack-ieee754")
+		  , unpack = require("../_unpack-ieee754");
+
+		return function (value) {
+			return unpack(pack(value, 8, 23), 8, 23);
+		};
+	}());
+} else {
+	toFloat32 = (function () {
+		var float32Array = new Float32Array(1);
+		return function (num) {
+			float32Array[0] = num;
+			return float32Array[0];
+		};
+	}());
+}
+
+module.exports = function (value) {
+	if (isNaN(value)) return NaN;
+	value = Number(value);
+	if (value === 0) return value;
+	if (!isFinite(value)) return value;
+
+	return toFloat32(value);
+};
diff --git a/node_modules/es5-ext/math/hypot/implement.js b/node_modules/es5-ext/math/hypot/implement.js
new file mode 100644
index 00000000..e2b3928b
--- /dev/null
+++ b/node_modules/es5-ext/math/hypot/implement.js
@@ -0,0 +1,8 @@
+"use strict";
+
+if (!require("./is-implemented")()) {
+	Object.defineProperty(Math, "hypot", { value: require("./shim"),
+		configurable: true,
+enumerable: false,
+writable: true });
+}
diff --git a/node_modules/es5-ext/math/hypot/index.js b/node_modules/es5-ext/math/hypot/index.js
new file mode 100644
index 00000000..a030a419
--- /dev/null
+++ b/node_modules/es5-ext/math/hypot/index.js
@@ -0,0 +1,5 @@
+"use strict";
+
+module.exports = require("./is-implemented")()
+	? Math.hypot
+	: require("./shim");
diff --git a/node_modules/es5-ext/math/hypot/is-implemented.js b/node_modules/es5-ext/math/hypot/is-implemented.js
new file mode 100644
index 00000000..d317bc7e
--- /dev/null
+++ b/node_modules/es5-ext/math/hypot/is-implemented.js
@@ -0,0 +1,7 @@
+"use strict";
+
+module.exports = function () {
+	var hypot = Math.hypot;
+	if (typeof hypot !== "function") return false;
+	return hypot(3, 4) === 5;
+};
diff --git a/node_modules/es5-ext/math/hypot/shim.js b/node_modules/es5-ext/math/hypot/shim.js
new file mode 100644
index 00000000..2a92b171
--- /dev/null
+++ b/node_modules/es5-ext/math/hypot/shim.js
@@ -0,0 +1,43 @@
+// Thanks for hints: https://github.com/paulmillr/es6-shim
+
+"use strict";
+
+var some = Array.prototype.some
+  , abs = Math.abs
+  , sqrt = Math.sqrt
+  , compare = function (val1, val2) {
+	return val2 - val1;
+}
+  , divide = function (value) {
+	return value / this;
+}
+  , add = function (sum, number) {
+	return sum + number * number;
+};
+
+// eslint-disable-next-line no-unused-vars
+module.exports = function (val1, val2 /*, …valn*/) {
+	var result, numbers;
+	if (!arguments.length) return 0;
+	some.call(arguments, function (val) {
+		if (isNaN(val)) {
+			result = NaN;
+			return false;
+		}
+		if (!isFinite(val)) {
+			result = Infinity;
+			return true;
+		}
+		if (result !== undefined) return false;
+		val = Number(val);
+		if (val === 0) return false;
+		if (numbers) numbers.push(abs(val));
+		else numbers = [abs(val)];
+		return false;
+	});
+	if (result !== undefined) return result;
+	if (!numbers) return 0;
+
+	numbers.sort(compare);
+	return numbers[0] * sqrt(numbers.map(divide, numbers[0]).reduce(add, 0));
+};
diff --git a/node_modules/es5-ext/math/imul/implement.js b/node_modules/es5-ext/math/imul/implement.js
new file mode 100644
index 00000000..bff57735
--- /dev/null
+++ b/node_modules/es5-ext/math/imul/implement.js
@@ -0,0 +1,8 @@
+"use strict";
+
+if (!require("./is-implemented")()) {
+	Object.defineProperty(Math, "imul", { value: require("./shim"),
+		configurable: true,
+enumerable: false,
+writable: true });
+}
diff --git a/node_modules/es5-ext/math/imul/index.js b/node_modules/es5-ext/math/imul/index.js
new file mode 100644
index 00000000..a756d594
--- /dev/null
+++ b/node_modules/es5-ext/math/imul/index.js
@@ -0,0 +1,5 @@
+"use strict";
+
+module.exports = require("./is-implemented")()
+	? Math.imul
+	: require("./shim");
diff --git a/node_modules/es5-ext/math/imul/is-implemented.js b/node_modules/es5-ext/math/imul/is-implemented.js
new file mode 100644
index 00000000..0f329198
--- /dev/null
+++ b/node_modules/es5-ext/math/imul/is-implemented.js
@@ -0,0 +1,7 @@
+"use strict";
+
+module.exports = function () {
+	var imul = Math.imul;
+	if (typeof imul !== "function") return false;
+	return imul(-1, 8) === -8;
+};
diff --git a/node_modules/es5-ext/math/imul/shim.js b/node_modules/es5-ext/math/imul/shim.js
new file mode 100644
index 00000000..a14e5895
--- /dev/null
+++ b/node_modules/es5-ext/math/imul/shim.js
@@ -0,0 +1,17 @@
+/* eslint no-bitwise: "off" */
+
+// Thanks: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference
+//         /Global_Objects/Math/imul
+
+"use strict";
+
+module.exports = function (val1, val2) {
+	var xh = (val1 >>> 16) & 0xffff
+	  , xl = val1 & 0xffff
+	  , yh = (val2 >>> 16) & 0xffff
+	  , yl = val2 & 0xffff;
+
+	// The shift by 0 fixes the sign on the high part
+	// the final |0 converts the unsigned value into a signed value
+	return (xl * yl + ((xh * yl + xl * yh) << 16 >>> 0)) | 0;
+};
diff --git a/node_modules/es5-ext/math/index.js b/node_modules/es5-ext/math/index.js
new file mode 100644
index 00000000..a59269cc
--- /dev/null
+++ b/node_modules/es5-ext/math/index.js
@@ -0,0 +1,24 @@
+"use strict";
+
+module.exports = {
+	acosh: require("./acosh"),
+	asinh: require("./asinh"),
+	atanh: require("./atanh"),
+	cbrt: require("./cbrt"),
+	ceil10: require("./ceil-10"),
+	clz32: require("./clz32"),
+	cosh: require("./cosh"),
+	expm1: require("./expm1"),
+	floor10: require("./floor-10"),
+	fround: require("./fround"),
+	hypot: require("./hypot"),
+	imul: require("./imul"),
+	log10: require("./log10"),
+	log2: require("./log2"),
+	log1p: require("./log1p"),
+	round10: require("./round-10"),
+	sign: require("./sign"),
+	sinh: require("./sinh"),
+	tanh: require("./tanh"),
+	trunc: require("./trunc")
+};
diff --git a/node_modules/es5-ext/math/log10/implement.js b/node_modules/es5-ext/math/log10/implement.js
new file mode 100644
index 00000000..669cee88
--- /dev/null
+++ b/node_modules/es5-ext/math/log10/implement.js
@@ -0,0 +1,8 @@
+"use strict";
+
+if (!require("./is-implemented")()) {
+	Object.defineProperty(Math, "log10", { value: require("./shim"),
+		configurable: true,
+enumerable: false,
+writable: true });
+}
diff --git a/node_modules/es5-ext/math/log10/index.js b/node_modules/es5-ext/math/log10/index.js
new file mode 100644
index 00000000..bc2ec481
--- /dev/null
+++ b/node_modules/es5-ext/math/log10/index.js
@@ -0,0 +1,5 @@
+"use strict";
+
+module.exports = require("./is-implemented")()
+	? Math.log10
+	: require("./shim");
diff --git a/node_modules/es5-ext/math/log10/is-implemented.js b/node_modules/es5-ext/math/log10/is-implemented.js
new file mode 100644
index 00000000..f2217597
--- /dev/null
+++ b/node_modules/es5-ext/math/log10/is-implemented.js
@@ -0,0 +1,7 @@
+"use strict";
+
+module.exports = function () {
+	var log10 = Math.log10;
+	if (typeof log10 !== "function") return false;
+	return log10(2) === 0.3010299956639812;
+};
diff --git a/node_modules/es5-ext/math/log10/shim.js b/node_modules/es5-ext/math/log10/shim.js
new file mode 100644
index 00000000..e8599a26
--- /dev/null
+++ b/node_modules/es5-ext/math/log10/shim.js
@@ -0,0 +1,14 @@
+"use strict";
+
+var log = Math.log, LOG10E = Math.LOG10E;
+
+module.exports = function (value) {
+	if (isNaN(value)) return NaN;
+	value = Number(value);
+	if (value < 0) return NaN;
+	if (value === 0) return -Infinity;
+	if (value === 1) return 0;
+	if (value === Infinity) return Infinity;
+
+	return log(value) * LOG10E;
+};
diff --git a/node_modules/es5-ext/math/log1p/implement.js b/node_modules/es5-ext/math/log1p/implement.js
new file mode 100644
index 00000000..36fcee61
--- /dev/null
+++ b/node_modules/es5-ext/math/log1p/implement.js
@@ -0,0 +1,8 @@
+"use strict";
+
+if (!require("./is-implemented")()) {
+	Object.defineProperty(Math, "log1p", { value: require("./shim"),
+		configurable: true,
+enumerable: false,
+writable: true });
+}
diff --git a/node_modules/es5-ext/math/log1p/index.js b/node_modules/es5-ext/math/log1p/index.js
new file mode 100644
index 00000000..41c67364
--- /dev/null
+++ b/node_modules/es5-ext/math/log1p/index.js
@@ -0,0 +1,5 @@
+"use strict";
+
+module.exports = require("./is-implemented")()
+	? Math.log1p
+	: require("./shim");
diff --git a/node_modules/es5-ext/math/log1p/is-implemented.js b/node_modules/es5-ext/math/log1p/is-implemented.js
new file mode 100644
index 00000000..7626ab47
--- /dev/null
+++ b/node_modules/es5-ext/math/log1p/is-implemented.js
@@ -0,0 +1,7 @@
+"use strict";
+
+module.exports = function () {
+	var log1p = Math.log1p;
+	if (typeof log1p !== "function") return false;
+	return log1p(1) === 0.6931471805599453;
+};
diff --git a/node_modules/es5-ext/math/log1p/shim.js b/node_modules/es5-ext/math/log1p/shim.js
new file mode 100644
index 00000000..7c6f2273
--- /dev/null
+++ b/node_modules/es5-ext/math/log1p/shim.js
@@ -0,0 +1,17 @@
+// Thanks: https://github.com/monolithed/ECMAScript-6/blob/master/ES6.js
+
+"use strict";
+
+var log = Math.log;
+
+module.exports = function (value) {
+	if (isNaN(value)) return NaN;
+	value = Number(value);
+	if (value < -1) return NaN;
+	if (value === -1) return -Infinity;
+	if (value === 0) return value;
+	if (value === Infinity) return Infinity;
+
+	if (value > -1.0e-8 && value < 1.0e-8) return value - value * value / 2;
+	return log(1 + value);
+};
diff --git a/node_modules/es5-ext/math/log2/implement.js b/node_modules/es5-ext/math/log2/implement.js
new file mode 100644
index 00000000..f1c04e09
--- /dev/null
+++ b/node_modules/es5-ext/math/log2/implement.js
@@ -0,0 +1,8 @@
+"use strict";
+
+if (!require("./is-implemented")()) {
+	Object.defineProperty(Math, "log2", { value: require("./shim"),
+		configurable: true,
+enumerable: false,
+writable: true });
+}
diff --git a/node_modules/es5-ext/math/log2/index.js b/node_modules/es5-ext/math/log2/index.js
new file mode 100644
index 00000000..d319caec
--- /dev/null
+++ b/node_modules/es5-ext/math/log2/index.js
@@ -0,0 +1,5 @@
+"use strict";
+
+module.exports = require("./is-implemented")()
+	? Math.log2
+	: require("./shim");
diff --git a/node_modules/es5-ext/math/log2/is-implemented.js b/node_modules/es5-ext/math/log2/is-implemented.js
new file mode 100644
index 00000000..c70963f6
--- /dev/null
+++ b/node_modules/es5-ext/math/log2/is-implemented.js
@@ -0,0 +1,7 @@
+"use strict";
+
+module.exports = function () {
+	var log2 = Math.log2;
+	if (typeof log2 !== "function") return false;
+	return log2(3).toFixed(15) === "1.584962500721156";
+};
diff --git a/node_modules/es5-ext/math/log2/shim.js b/node_modules/es5-ext/math/log2/shim.js
new file mode 100644
index 00000000..51fcdae9
--- /dev/null
+++ b/node_modules/es5-ext/math/log2/shim.js
@@ -0,0 +1,14 @@
+"use strict";
+
+var log = Math.log, LOG2E = Math.LOG2E;
+
+module.exports = function (value) {
+	if (isNaN(value)) return NaN;
+	value = Number(value);
+	if (value < 0) return NaN;
+	if (value === 0) return -Infinity;
+	if (value === 1) return 0;
+	if (value === Infinity) return Infinity;
+
+	return log(value) * LOG2E;
+};
diff --git a/node_modules/es5-ext/math/round-10.js b/node_modules/es5-ext/math/round-10.js
new file mode 100644
index 00000000..228c2351
--- /dev/null
+++ b/node_modules/es5-ext/math/round-10.js
@@ -0,0 +1,3 @@
+"use strict";
+
+module.exports = require("./_decimal-adjust")("round");
diff --git a/node_modules/es5-ext/math/sign/implement.js b/node_modules/es5-ext/math/sign/implement.js
new file mode 100644
index 00000000..bc7da14d
--- /dev/null
+++ b/node_modules/es5-ext/math/sign/implement.js
@@ -0,0 +1,8 @@
+"use strict";
+
+if (!require("./is-implemented")()) {
+	Object.defineProperty(Math, "sign", { value: require("./shim"),
+		configurable: true,
+enumerable: false,
+writable: true });
+}
diff --git a/node_modules/es5-ext/math/sign/index.js b/node_modules/es5-ext/math/sign/index.js
new file mode 100644
index 00000000..9f286564
--- /dev/null
+++ b/node_modules/es5-ext/math/sign/index.js
@@ -0,0 +1,5 @@
+"use strict";
+
+module.exports = require("./is-implemented")()
+	? Math.sign
+	: require("./shim");
diff --git a/node_modules/es5-ext/math/sign/is-implemented.js b/node_modules/es5-ext/math/sign/is-implemented.js
new file mode 100644
index 00000000..23ff83a6
--- /dev/null
+++ b/node_modules/es5-ext/math/sign/is-implemented.js
@@ -0,0 +1,7 @@
+"use strict";
+
+module.exports = function () {
+	var sign = Math.sign;
+	if (typeof sign !== "function") return false;
+	return (sign(10) === 1) && (sign(-20) === -1);
+};
diff --git a/node_modules/es5-ext/math/sign/shim.js b/node_modules/es5-ext/math/sign/shim.js
new file mode 100644
index 00000000..760c69d1
--- /dev/null
+++ b/node_modules/es5-ext/math/sign/shim.js
@@ -0,0 +1,7 @@
+"use strict";
+
+module.exports = function (value) {
+	value = Number(value);
+	if (isNaN(value) || (value === 0)) return value;
+	return value > 0 ? 1 : -1;
+};
diff --git a/node_modules/es5-ext/math/sinh/implement.js b/node_modules/es5-ext/math/sinh/implement.js
new file mode 100644
index 00000000..cc4c40bc
--- /dev/null
+++ b/node_modules/es5-ext/math/sinh/implement.js
@@ -0,0 +1,8 @@
+"use strict";
+
+if (!require("./is-implemented")()) {
+	Object.defineProperty(Math, "sinh", { value: require("./shim"),
+		configurable: true,
+enumerable: false,
+writable: true });
+}
diff --git a/node_modules/es5-ext/math/sinh/index.js b/node_modules/es5-ext/math/sinh/index.js
new file mode 100644
index 00000000..2c43dce1
--- /dev/null
+++ b/node_modules/es5-ext/math/sinh/index.js
@@ -0,0 +1,5 @@
+"use strict";
+
+module.exports = require("./is-implemented")()
+	? Math.sinh
+	: require("./shim");
diff --git a/node_modules/es5-ext/math/sinh/is-implemented.js b/node_modules/es5-ext/math/sinh/is-implemented.js
new file mode 100644
index 00000000..5e4ee40c
--- /dev/null
+++ b/node_modules/es5-ext/math/sinh/is-implemented.js
@@ -0,0 +1,7 @@
+"use strict";
+
+module.exports = function () {
+	var sinh = Math.sinh;
+	if (typeof sinh !== "function") return false;
+	return (sinh(1) === 1.1752011936438014) && (sinh(Number.MIN_VALUE) === 5e-324);
+};
diff --git a/node_modules/es5-ext/math/sinh/shim.js b/node_modules/es5-ext/math/sinh/shim.js
new file mode 100644
index 00000000..fc6a0477
--- /dev/null
+++ b/node_modules/es5-ext/math/sinh/shim.js
@@ -0,0 +1,18 @@
+// Parts of implementation taken from es6-shim project
+// See: https://github.com/paulmillr/es6-shim/blob/master/es6-shim.js
+
+"use strict";
+
+var expm1 = require("../expm1")
+  , abs   = Math.abs
+  , exp   = Math.exp
+  , e     = Math.E;
+
+module.exports = function (value) {
+	if (isNaN(value)) return NaN;
+	value = Number(value);
+	if (value === 0) return value;
+	if (!isFinite(value)) return value;
+	if (abs(value) < 1) return (expm1(value) - expm1(-value)) / 2;
+	return (exp(value - 1) - exp(-value - 1)) * e / 2;
+};
diff --git a/node_modules/es5-ext/math/tanh/implement.js b/node_modules/es5-ext/math/tanh/implement.js
new file mode 100644
index 00000000..9e30d10d
--- /dev/null
+++ b/node_modules/es5-ext/math/tanh/implement.js
@@ -0,0 +1,8 @@
+"use strict";
+
+if (!require("./is-implemented")()) {
+	Object.defineProperty(Math, "tanh", { value: require("./shim"),
+		configurable: true,
+enumerable: false,
+writable: true });
+}
diff --git a/node_modules/es5-ext/math/tanh/index.js b/node_modules/es5-ext/math/tanh/index.js
new file mode 100644
index 00000000..7c45d988
--- /dev/null
+++ b/node_modules/es5-ext/math/tanh/index.js
@@ -0,0 +1,5 @@
+"use strict";
+
+module.exports = require("./is-implemented")()
+	? Math.tanh
+	: require("./shim");
diff --git a/node_modules/es5-ext/math/tanh/is-implemented.js b/node_modules/es5-ext/math/tanh/is-implemented.js
new file mode 100644
index 00000000..b17a1bc4
--- /dev/null
+++ b/node_modules/es5-ext/math/tanh/is-implemented.js
@@ -0,0 +1,7 @@
+"use strict";
+
+module.exports = function () {
+	var tanh = Math.tanh;
+	if (typeof tanh !== "function") return false;
+	return (tanh(1) === 0.7615941559557649) && (tanh(Number.MAX_VALUE) === 1);
+};
diff --git a/node_modules/es5-ext/math/tanh/shim.js b/node_modules/es5-ext/math/tanh/shim.js
new file mode 100644
index 00000000..974dd7cd
--- /dev/null
+++ b/node_modules/es5-ext/math/tanh/shim.js
@@ -0,0 +1,17 @@
+"use strict";
+
+var exp = Math.exp;
+
+module.exports = function (value) {
+	var num1, num2;
+	if (isNaN(value)) return NaN;
+	value = Number(value);
+	if (value === 0) return value;
+	if (value === Infinity) return 1;
+	if (value === -Infinity) return -1;
+	num1 = exp(value);
+	if (num1 === Infinity) return 1;
+	num2 = exp(-value);
+	if (num2 === Infinity) return -1;
+	return (num1 - num2) / (num1 + num2);
+};
diff --git a/node_modules/es5-ext/math/trunc/implement.js b/node_modules/es5-ext/math/trunc/implement.js
new file mode 100644
index 00000000..1ecc124c
--- /dev/null
+++ b/node_modules/es5-ext/math/trunc/implement.js
@@ -0,0 +1,8 @@
+"use strict";
+
+if (!require("./is-implemented")()) {
+	Object.defineProperty(Math, "trunc", { value: require("./shim"),
+		configurable: true,
+enumerable: false,
+writable: true });
+}
diff --git a/node_modules/es5-ext/math/trunc/index.js b/node_modules/es5-ext/math/trunc/index.js
new file mode 100644
index 00000000..94c02691
--- /dev/null
+++ b/node_modules/es5-ext/math/trunc/index.js
@@ -0,0 +1,5 @@
+"use strict";
+
+module.exports = require("./is-implemented")()
+	? Math.trunc
+	: require("./shim");
diff --git a/node_modules/es5-ext/math/trunc/is-implemented.js b/node_modules/es5-ext/math/trunc/is-implemented.js
new file mode 100644
index 00000000..b1507352
--- /dev/null
+++ b/node_modules/es5-ext/math/trunc/is-implemented.js
@@ -0,0 +1,7 @@
+"use strict";
+
+module.exports = function () {
+	var trunc = Math.trunc;
+	if (typeof trunc !== "function") return false;
+	return (trunc(13.67) === 13) && (trunc(-13.67) === -13);
+};
diff --git a/node_modules/es5-ext/math/trunc/shim.js b/node_modules/es5-ext/math/trunc/shim.js
new file mode 100644
index 00000000..bf6ac8cc
--- /dev/null
+++ b/node_modules/es5-ext/math/trunc/shim.js
@@ -0,0 +1,13 @@
+"use strict";
+
+var floor = Math.floor;
+
+module.exports = function (value) {
+	if (isNaN(value)) return NaN;
+	value = Number(value);
+	if (value === 0) return value;
+	if (value === Infinity) return Infinity;
+	if (value === -Infinity) return -Infinity;
+	if (value > 0) return floor(value);
+	return -floor(-value);
+};