* mpeg support is necessary for mp3 playback (handy for music)
  consider providing better documentation of this dependency.

* plan for support of multiple OS-level windows (more than 
  one RootWindow) - note that single window is a hardware
  limitation imposed in SDL

* Document the widget packing scheme, which determines widget
  size and placement, and allows us to handle dynamic resizing

* fix TAB focus handling

* complete API documention (inline, in header files)
  using doxygen styles

* test test test ...

* change layout engine of MultiLineEdit to support varying line heights

* optionally use SDL_image for surface loading ?

* add more export formats to Surface::writeToFile() 
  (only supports INDEXED and RGBA8888 surfaces presently)

* make more and _nicer_ demos, and demo packages

* document existing demos

* do we really want '-release $(LT_RELEASE)' in libwftk Makefile.am args?

* Test and sandbox away the GL code (behind #ifdefs)

* Add GL screenarea widget
