Additions to simple.d: Dropbox, Ubuntu-One, Deja-dup, Duplicity, and mpv.
Merge pull request #52 from Feminist-Software-Foundation/master

Additions to simple.d: Dropbox, Ubuntu-One, Deja-dup, Duplicity, and mpv.
Don't treat `duplicity` as user.idle; unless invoked by deja-dup

... or by other process labeled with user.idle.
Updates for development release