[imp] Some bugs in HEAD

[Jan Kuipers]

Regarding HEAD:
- When clicking "Empty trash" (when you use a trashfolder) in the menu, I get
the      
  errormessage: "Could not delete messages from trash. The server said: nothing>"
- You also can't empty a folder in the folderwindow if this folder has the focus in
  the mailbox view.
- You can't select a prefered language in language options

FYI: this doesn't generated any PHP nor Horde errors

-- 
Jan Kuipers
Systeembeheer Lauwers College