heroku/heroku-buildpack-ruby — pull request #290 by allomov (2014-07-24 19:49:07+00:00)
Title: Remove sqlite3 from database_url generation.

I'm not sure that this lines are needed since `sqlite3` officially is not supported.

By the way I was able to deploy rails application that uses `sqlite3` by defining `DATABASE_URL=sqlite3:///some-strange-database-name.db`. Yes, it's odd solution, but possibly might be helpful to someone.