Fixed vector const initialization to be efficient.  Added new optimized Array class.  Added additional PERFORMANCE_MODE enhancements.  Fixed Matrix3D to work with PERFORMANCE_MODE.
Merge branch 'master' of https://github.com/playscript/playscript-mono
Merge branch 'master' of https://github.com/playscript/playscript-mono into perf_mode
Merge branch 'master' of https://github.com/playscript/playscript-mono into perf_mode
Updated from latest master.
Merge remote-tracking branch 'origin/master' into performance-mode
Fix Array constant initializer bug

The type wasn't being set correctly when the array contained only
null literals.
Revert project file changes

Other than the addition of the PERFORMANCE_MODE define
Merge remote-tracking branch 'origin/master' into performance-mode