New version available. I updated my original post

Version 0.2.1

• updated dropn900.0.2.1.tar.gz
• Added a context menu for the tree view:
  
• Added Dropbox V1 API share functionality:
  
• Pressing the "share" menu entry will create a share and copy a link to the shared file/folder to the clipboard
• Removed the "create public link" and "open public link" buttons (old, disfunct Dropbox V0 API)

Atm there is no (documentated) way to remove a share with the Dropbox API. The only way to remove a share is with the dropbox webinterface.

Btw: I still can't upload to extras-devel , but eventually i'll get that fixed too.