xtr3me/spree_billing_sisow — pull request #3 by berkes (2014-10-30 10:58:03+00:00)
Title: Add therubyracer; a requirement for building the dummy app

When using a clean environment, or some method that cotnains the gem environments
(such as rvm or rbenv) you don't have this gem lying around.·
In that case building the dummy app fails.

By including a js executer it passes.