* Update the date on attachments to match the post they belong to, props cfinke
* Also allows you to edit the Imported From taxonomy via the UI
* Adds a filter drop-down to the posts listing as well



git-svn-id: https://plugins.svn.wordpress.org/keyring-social-importers/trunk@804085 b8457f37-d9ea-0310-8a92-e5e31aec5664