StatusNet:Bitlyurl-df0b3eb32617935eff63207d322dcd672aa2b4af-URL shortening with bit.ly req/en

URL shortening with bit.ly requires [a bit.ly account and API key](http://bit.ly/a/your_api_key). This verifies that this is an authorized account, and allow you to use bit.ly's tracking features and custom domains.