abrowse TODO:

- man page

- extract output device capabilities (i.e. stereo, 44khz, etc) for display in 
  the "Output Devices" menu

- play, pause, rewind, fast fowrward control buttons

- check to see if Alofi is running, give error dialog if not

- improve robustness:  catch errors trying to run aset, aplay

CHANGES:

- added help page
