Follow UGDK changes.
Support for nodeless scenes.
Build fix.
Using latest ugdk API
Fix scripts require paths.
Remove overrides (gcc 4.6 doesn't like then)
Merge branch 'ugdk_scene_render' into dev

Conflicts:
	externals/ugdk
Fix mummy ai to only follow visible targets.
Initial structure for the shadow casting.
Initial failing at shadowcasting.
Fix shadow-casting!!
Refactor and offset near points.
Support an arbitrary number of vertices per shape in the shadowcasting.
Simple implementation of fully-working shadow casting.
Otimizations for the shadow casting drawing.
Some refactoring.
Ready for advanced shadow casting shaders.
Custom shader for some awesome color in the shadow casting.
Merge branch 'shadowcasting' into dev
Second room WITH VASES.