Remove unnecessary engine releases within script engine lifetime
Merge branch 'master' of https://github.com/supertuxkart/stk-code into ScriptCache
Added basic caching for scripts
Merge branch 'master' of https://github.com/supertuxkart/stk-code into ScriptCache
Added map container for script cache
Added basic line callback
Disabled callback for now
Fixed #1638 (text overflows behind buttons) - partially by removing
the confirmation field for the emal address.
Merge branch 'master' of github.com:supertuxkart/stk-code
Minor tweak with transluscent material
Remove extra blurring step in fog
Merge branch 'master' of https://github.com/supertuxkart/stk-code
Re enable fog bluring was removed in the previous commit. IMHO without bluring the quality is just awful. The edges looks jagged and it seems we have no AA at all. If this is a performance issue we might need an option for that like: high quality blur. However in my test I didnt noticed a big difference in the framerate. Auria you might want to make better tests
Minor modifications for skidding and nitro.

Still could be better, I'm not an artist ;p
Fix box particules starting at 0. 0. 0.
Prevent rendering too much point light scattering
Tweak nitro for new engine
Merge pull request #1649 from sachith500/ScriptCache

Script cache
make nitro emit light. The effect is not perfect yet, but already quite cool