Todo

   - make file-type and encoding more independant and user friendly
   - code cleanup
   - redesign preferences handling

   - redesign GTK GUI
   - disable Shm if client and server are not running on the same host 
   - add qt encoding when FFMPEG has the muxer
   
   see also the RFE section at:
   http://sourceforge.net/tracker/?group_id=81535&atid=563257
