heroku/heroku — pull request #903 by brandur (2013-09-18 18:05:38+00:00)
Title: Produce an error when a delinquent account is detected

Inform the user that payment is required when a 402 is detected from the
API indicating that an account is delinquent.

Not yet ready for mainline. API implementation is underway, and 562bf9b
should be reverted and heroku-api upgraded before bringing this into
master.

See umbrella at heroku/api#956.