twitter 6.x-2.1

A number of bug fixes and the addition of an optional 'global' Twitter account for posting.

#367387 - add meta-information for the Rules module.
#335459 - check the HTTP Response when updating the status with a new post's title, and properly notify the user if something went wrong.
#336048 ensure NOT NULL for the screen_name column
#333704 - username and hashtag references produce invalid HTML
#374906 - Ensure tabs appear correctly when visiting the twitter user account edit tab.
#372970 - We don't actually test the node type before displaying the form. Whoops.
#242108 - Use the aliased URL instead of the raw node/$nid URL. Also added support for compressing URLs with TinyURL before they're sent to Twitter.com, and alternate URL shortening services via an override function.
#359375 - Tweak the default post title to avoid problems with URL shortening services.
#354308 - experimental support for Identi.ca - the API endpoint URL can be changed by an admin. UI text still says Twitter for users, though, and it's not yet possible to have Twitter accounts and Identi.ca accounts used on the same site.
#279319 by michaelphipps, support all of Twitter's HTTP response codes.