Added compound literals (C99) alternative for C++ compilers that don't
support this feature

Still some work left...

Code refractoring of music module to be more user-friendly (issue #144)

Many thanks to Marcelo Paez (paezao)

Well, not tested yet but it should work...

Merge OSX changes into develop branch

OS X compatiblity changes and compiled library

Integrate Develop branch

Some deep review of this shaders is required for optimization...

Updated

Integrate Develop branch

Update Makefile of 'src/' folder

The builds refer to de865a9 commit.

This library is only required by physac module to compulte physics in a
second thread

This commit restores the original method to compile all modules, but fix
prerequisites.