MicahChalmer/mr-sparkle — pull request #6 by osbornebrook (2013-08-20 12:31:28+00:00)
Title: Should also tell bundler to load the gems in to the group defined in the RACK_ENV environment variable

This allows me to load my development gems, pry etc. This is the rails behaviour and I'm sure many people are replicating it in their sinatra setups.