SVN changelog

Radiant: new .build file option "MAXSURFACELIGHTMAP" which sets max lightmap resolution for a single surfaces. Defaults to max lightmap size (which means single surface can be as bigger as whole lightmap). Setting MAXSURFACELIGHTMAP to lower values lets surfaces which are bigger to be chopped in a parts. This is used as an optimization, single smaller lightmaps are faster to process and allocate (also very big lightmaps are not packed well in a lightmap texture).