dropbox: Clean path in _getFolder
dropbox: Simplify sharing code
dropbox: Simplify and clean up #put
Update outdated comment
dropbox: Simplify and clean up #delete
dropbox: Share in #get
dropbox: Show userAddress in the widget
dropbox: Fix sharing
dropbox: Properly use cleanPath
Merge pull request #784 from remotestorage/dropbox_improvements

Dropbox backend improvements