Huge Fixes

Completely fixed the rasterData reading problem. It should also be
extremely more efficient (and actually work). I basically had really
fail logic because apparently I did not understand LZW as well as I
thought I did
http://www.matthewflickinger.com/lab/whatsinagif/lzw_image_data.asp
helped A LOT.
Merge pull request #1 from proflayton/LZWFixing

Huge Fixes