First major attempt at a GUI.
Proto-Buttons added.
Buttons now work correctly.
Cleaner font loading
Added SourceSansPro
Unused variable warnings
Clarified void* usage.
Gui-test now default build
Corrected copyright info, as it was made yesterday, not in 2012
Commenting the variables
Menu now asks how much space the font needs
Got menus and about dialog.
More gui work.
Platform specific functions here.
Windows test, fixed the bugs, all good
Work on the Open File dialog begins...
glew header I missed
and stay down
File listing sorted, now to the actual list
Merge branch 'master' into gui