added stained glass filter
fixed uninitialized wrap/clone values
fixed memory leaks when some filters were cancelled
fixed bug where fltk window was being hidden after esc was hit (fltk automatically hides the window in that case)
filter updates
stained glass can render edges now
limited opacity
added clear image option to menu
added tile option to image rotate
minor bugfixes
added blur filter
updated screenshot
added blur/sharpen filters
added copyright
sharpen filter bugfixes
sharpen filter tweaks
fixed uninitialized values