rubinius/rubinius — pull request #2759 by razielgn (2013-10-31 23:46:57+00:00)
Title: Added missing rexml/document standard library stub.

Required by rails, as seen on https://travis-ci.org/rails/rails/jobs/13340927. There are many more stubs that should be added to `rexml/`, but I don't know if you have something else in mind to solve this problem in the long term.