cscheid/rgithub — pull request #2 by smschauhan (2013-05-17 13:57:26+00:00)
Title: Fix for mandatory User Agent for Github API 

Github has made it mandatory for API requests to be accompanied with a meaningful User Agent header.
http://developer.github.com/changes/2013-04-24-user-agent-required/
Also logging response in case of API failures - will make it easier to manage API changes.