Remove UpdateBody and UpdateFixture funcition.
Fixed Header file name.
Add instruction to install Box2D header files. [ci skip]
Added brightness attribute to Light. Added separate equality test with and without epsilon to Color, similar to Vector2/3/4.
Use light's effective color for debug drawing.
Minor code formatting. Prefer machine word loop counter.
Merge remote-tracking branch 'upstream/master'

Conflicts:
	Bin/Data/Scripts/NinjaSnowWar/LightFlash.as
	Source/CMake/Modules/FindUrho3D.cmake
	Source/Engine/LuaScript/pkgs/Graphics/Light.pkg
	Source/Engine/LuaScript/pkgs/Math/Color.pkg