heroku/heroku-buildpack-ruby — pull request #142 by prathamesh-sonpatki (2013-09-05 03:31:19+00:00)
Title: Display error message if heroku_hatchet gem is not installed

- If somebody runs rake tasks before bundling they see a long
stacktrace about hatchet gem missing
- This PR adds a error message for missing 'heroku_hatchet' gem if it
can't be required