* Feature (REST): Added rate limit status to HTTP response headers as X-RateLimit-Limit and X-RateLimit-Remaining

* Fixed (OAuth): Fixed an issue where application icons were not being saved. Icons missed will show up eventually but developers can re-upload to fix the issue.

* Feature: Added a /friendships/add/[screen_name]page for 3rd party sites to refer web users to for following new people.

* Feature (REST): statuses/replies now includes mentions. Announcement Thread.

* Feature (REST): Added rate limit HTTP response header X-RateLimit-Reset.

* Fixed (REST): The since_id parameter on direct messages had recently stopped working and was repaired.