RENDER DEV: Harkyman's colored shadows will make for good club lighting

Harkyman just made a patch to color shadows of lamps, I have to say it would have some good artistic uses, but let’s see if this gets to SVN.:yes:

Also very useful for tweaking your light rig.

I hope this one would make it in the main code base.

I see many good enhancements but too often they
are not getting implemented …

snaps glowsticks