heroku/heroku — pull request #590 by will (2012-09-27 19:42:42+00:00)
Title: fix cases where database url doesn't match, and hpg returns nil

* prevent hpg_resolve from ever returning nil
* fix corner case where DATABASE_URL does not match an attachment
* this prevents people who add ?pool=15 to the end of their
database url manually from using DATABASE as an arguemnt
and from using argumentless defaults, but I see no sane way
of supporting those people