DONE:
- Improve Tinting/shading
- Improve support for other image formats, using libasimage.
- Rewrite all imaging stuff - that's a mess right now

TODO:
- find out about coloring problems with VERYBOLD
- find out what's wroong with XAPPLOAD_PATH
- fix the problem when border part of the window never gets to be 
  cleared ( most noticeble with Pine and mc )
- add horizontal scrollbar capability.