Try to fix crash on linux with proprietary drivers
Change xml style of screens and fix some issues with screens
Merge pull request #1371 from Flakebi/master

Change xml style of screens and fix some issues with screens
Fixed display or kart name in top left corner (caused by calling
add on the label widget twice).
Merge branch 'master' of github.com:supertuxkart/stk-code
Merge branch 'master' of https://github.com/supertuxkart/stk-code into ScriptEngine
Started moving tutorial hard coded messages ito scripts