Absolventa/schneiderlein — pull request #3 by neumanrq (2014-11-23 13:53:24+00:00)
Title: Test against different gemsets

* use well known appraisal gem for testing against different gemsets
* I had to modify the Dummy app slightly to work with Rails 4.0 - setting the `secret_key_base` hardly feels bad but I haven't found another way to come over (ideas welcome :) )