Added simple script that makes all challenges trivial
(0 laps, no time or energy limit).
Merge remote-tracking branch 'upstream/master'
Test commit.
Fixed format for TODO file.
More testing.
Removed unused variables.
Merge branch 'master' of github.com:supertuxkart/stk-code
Merge branch 'master' of https://github.com/supertuxkart/stk-code
Implemented bilateral for compute path.
Some tweak to ssao.
Implement bilateral with fragment codepath.
Reverse delete order of fbo.

Should be safer.
Remove tick for GI.
Merge remote-tracking branch 'origin/master'
Fix crash with intel
Tweak ssao (again)

Random factor is less perdicable, no more spiral.
Merge branch 'master' of github.com:supertuxkart/stk-code
Added new message system to show achievements in race (and not as a
dialog later). Work in progress ... it doesn't look particulary nice yet ;)
Fixed linux compilation.
Added new achievement background