Fix default minimum/ambience color for sRGB lightmaps
Having _minlight or _ambient set in "worldspawn" without explicitly specifying the respective value resulted in overbright lights if -sRGB mode was specified.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Having _minlight or _ambient set in "worldspawn" without explicitly specifying the respective value resulted in overbright lights if -sRGB mode was specified.