Fix metadata on functions.

- Don't use metadata to store ast, env, params data.
- In Clojure, store metadata on the :meta key of the real metadata.
  This also allows using any datatype as metadata.

1 files changed, 2 insertions, 3 deletions

diff --git a/docs/TODO b/docs/TODO
index 6ff581c..3e068d7 100644
--- a/docs/TODO
+++ b/docs/TODO
@@ -80,10 +80,11 @@ Future Implementations:
             * JavaScript
             * Java
             * PHP
-            - C#
+            * C#
             * Python
             - C++
             - Ruby
+                - http://www.ruby-doc.org/stdlib-1.9.3/libdoc/readline/rdoc/Readline.html
             * C
             - Objective-C
             - Perl 
@@ -116,8 +117,6 @@ Future Implementations:
                 - https://github.com/tpope/timl
             - Common Lisp
             - Rust
-
-        - Tier 4
             - M (OpenM/MUMPS)
             - Factor (Stack-based)