- GConf for settings
- Audio notification option
- Adjust menu position to avoid covering panel
- Separate intervals for each feed
- Create menu in such a way that it can be modified after 
  creation (instead of recreating it every time)
- Make newly added feeds not added until user clicks Okay. 
  As it is now they are added right away, and persist even
  if Cancel is hit.
- Simplify feed data structure.
