Always subject to change...

Important:
d Rename 'manage thumbnails cache' to 'purge outdated thumbnails'
d Add save button to config dialog
d add a 'fit window to image' feature when tools float
d remember tool state on exit (save settings on exit)

Semi Important:
  clean up resize signals/callbacks, its getting ugly
  look into why we crash with themes
d Add cancel method for when thumbs are loading (hit Esc key)
d make the tools hideable in addition to floatable
  tab completion for move dialogs
  tab completion for dir selecting (make dir history combo widget)
  multiple selection (for move, delete, etc...)
  on new image, reset image portion displayed to upper left
  when resizing window, keep image portion displayed the same (do
    not reset to upper left)

Not Important right now:
  slideshows

