Fix a remote crasher

- Fix some AI stupidness factors - Slight optimizations and formatting

Make frontend compile with clang

- Allow switching colors with mouse wheel - Use indices instead of color values - Introduce a model for colors - Some small fixes, .pro can be used to build again - Yay, tested it to work via network (and fixed a bug!) (TODO: pass colors to engine by index)

initial GLSL1.2 test version

Minor freezer changes, allow snow to accumulate on indestructible terrain too.

Removed lazy update: workaround for R7103

Bring leftTeams back (with a fix) as it is apparently needed for spectators.

merge

- Restore pre-r9257cf8e7af2 behavior - Get rid of leftTeams, send REMOVE_TEAM immediately instead

Merge

Fix reported in bug #327, comment #3 - untested but seems reasonable/safe.

http://www.demoties.com/wp-content/uploads/2011/03/mar-01-6.jpg

Mark team for deletion when letting others know it has left during game. Should help with quitters problem.