hadley/devtools — pull request #290 by christophergandrud (2013-04-23 23:33:41+00:00)
Title: Import the digest package.

I was getting an error telling me that R could not find the *digest* package when I ran `source_url`. It doesn't appear to be in the NAMESPACE, so I added it to the imports. All make a similar pull request in the DESCRIPTION file.