adding unsigned int for some properties
Merge branch 'GUI' of https://github.com/Otrin/GIF-LZW.git into IO

Conflicts:
	src/lzw/io.cpp
fixing problem with the gce. these properties now in the gif
First animated GIF (4.gif) works without crashing. Still needs a lot of
Tweeking
Animated GIFs work better now. Still way to fast.