added drag and drop support
tool updates/bugfixes, crop button works now
fixed crop display bugs, can pan view while cropping now
make palette X's a bit darker
updated readme/screenshot
updated readme/screenshot
updated readme/screenshot
updated readme/screenshot
put widgets into anonymous namespace
put all gui components into anonymous namespace, refactored accordingly
moved palette load/save into File class and fixed bugs
fixed redraw bug when panning while making a polygon