Merge material changes for COGLES1MaterialRenderer_LIGHTMAP and COpenGLMaterialRenderer_TRANSPARENT_ALPHA_CHANNEL which had been done in OGL in trunk (r2740) to ensure materials look the same on all platforms (thx @porcus for reporting the problem with TRANSPARENT_ALPHA_CHANNEL_REF).


git-svn-id: svn://svn.code.sf.net/p/irrlicht/code@4716 dfc29bdd-3216-0410-991c-e03cc46cb475