Added support for "<" relations in graphical restrictions, fixed
compiler warnings.
When entering gp_name, display buttons vertically to allows gamepad selection
Clean up sunlight shader + factorize diffusebrdf
Remove redondant uniform in IBL
Move FS template declaration in shaders.hpp
Factorise SH coefficient in an UBO
Remove extra uniforms in IBL shader
Fix memory leak.
Added support for wip-tracks and wip-karts directories, which are only
used when artist debug mode is enabled.
Merge branch 'master' of github.com:supertuxkart/stk-code
Missing patch in previous commit.
Give the first player tux as icon (instead of sara). Fixes #1771 for now.
Fixed incorrect icon name.
Merge pull request #1779 from math07/working

When entering gp_name, display buttons vertically to allows gamepad
Factorise sun color/position
Merge branch 'master' of github.com:supertuxkart/stk-code
Changed version number from 'svn' to 'git'.
Forget to update grass pass 2 sun location
Misc tweaks, mainly to include new island tracks in challenges and GPs, and other minor fixes
Work around #1780 (font corruption).