allow random colour for polygons
disable lighting
add ramps to test map
Merge branch 'bpintegration' of git@github.com:opcon/revolution.git into bpintegration

Conflicts:
	Source/Resources/Maps/groundTest.mb2.dat
	Source/Revolution/Revolution/Application.cs
disable lighting for the moment until a proper lighting system can be implemented
add support for random brush colours
(better than random polygon colours because it highlights
brush coherency)
Clean up unneeded code
fix formatting
random polygon colour is now off by default