Add menu bar.
Change rendering format from RGB888 to RGB32. Render using QImage
instead of intermediate netpbm.
Add 2x EPX filter.
Implemented EPX 3x and 4x. Added hqx from libhqx.
Do not use a filter whan the zoom level is 1x.
Add controller mapping info window. Fix support for two pads.
Minor refactoring.
Add license.