PROJ/travis/osx, branch 5.2

CI environment: adapt for C++11 capable environments

2018-05-30T09:48:28+00:00

Remove GIGS Python test suite.

2018-02-02T11:09:04+00:00

All the GIGS JSON files have been converted to the gie format
and are now covered by running "make check". Therefore we no
longer need the Python setup. Removing it from the Travis CI
setup should speed up the test execution time a bit.

Add -std=c89 to travis targets.

2017-12-17T17:56:38+00:00

The multistresstest code has been made C89 compliant in the process.

Travis MacOSX: install pip

2017-12-12T12:53:54+00:00

Remove all occurences of python3 from CI scripts since it is not in use

2017-10-13T16:54:07+00:00

run 'brew update' before 'brew install' to avoid failure caused by missing Ruby 2.3

2017-10-13T16:54:07+00:00

Make sure all platform specific before_install scripts call the global before_install script. Python version setup moved to global before_install script.

2017-09-12T10:38:26+00:00

travis/install.sh: use super pedantic warning flags for autoconf build

2017-02-26T11:32:44+00:00

.travis.yml: add multi config setup

2017-01-19T12:15:13+00:00

Setup 4 configs: Linux/GCC, Linux/CLang, OSX CLang and mingw32
OSX allowed to fail, since it fails in the proj -VC step.