BitmapText: assign wrap from options, color fix, default size from fnt
Removed overridden setColor() from Text (probably fixes #233 definitively)
Small change to error reporting in TextureAtlas (just because in my case the defined region name was a space " " and I wasn't understanding what the error meant)
BitmapText: readded assignment to wrap, changed colorTransform from offset to multiply.
BitmapText/FontAtlas: added support for Pixelizer format (basically just a png with no descriptors), default BitmapFont (with nice black borders) - small png in assets/font, introduced BitmapTextOptions (which extends TextOptions)