sijbrandij/railsgirls-nl — pull request #21 by iain (2013-03-03 20:51:18+00:00)
Title: Revert "Include psych explicitly to prevent conflicts with other apps."

This reverts commit 38384f5e697187f5b46de0a61b88c64bf8806863.

I ran into this error when trying to run any other rails app: https://github.com/rails/rails/issues/3488

You don't need to have psych as gem anyway, since it's in stdlib.