Adding OAUTH Spark library
App.net admin controller
typo
Spark loader
Posting class for App.net
Add App.net to list of services
Admin view for App.net
Admin view understands App.net params
Switch to development settings for testing
Correct URL for callback
Tidy up
Comment
App.net posting support
Merge pull request #6 from jonjennings/master

Merge OAUTH library & App.net code