Added Vagrant test harness to confirm support across target OSes.
Added section on contributing to README.
 Additional details about targeted platforms the module has been tested against.
Fixed error in installation instructions.
Added 32 bit versions of Ubuntu 10.04 and 12.04 to Vagrant runs. Added rake task for Vagrant to act as a reality check for the module.
Added missing vagrant requirement to Gemfile for Travis.
Merged changes from master branch.