RiotGames/berkshelf — pull request #777 by Hamled (2013-07-25 19:42:18+00:00)
Title: Fail gracefully if README.md does not exist

In 2.0.7 and prior if README.md did not exist `berks install` would
fail with an error about being unable to find the Berksfile.
Since 956cf37 the error message is more clear, but we should still avoid
failing entirely.