spree/spree — pull request #3988 by Willianvdv (2013-11-20 16:16:32+00:00)
Title: Set postgres host when creating a test_app

Sets the host for Postgres database config. I'm using the Postgres.app where you have to set the host to localhost.

Usage is:

```
$ DB=postgres DB_HOST=localhost bundle exec rake test_app
```