Updated to Rails 3.2.12.

This also updates us to json v1.7.7, addressing that vulnerability.
Merge pull request #4 from pozorvlak/master

Add an .rvmrc
Merge pull request #5 from pozorvlak/rails_3.2.12

Updated to Rails 3.2.12.
Request "user" scope, required for email addresses.
Use GitHub username rather than Real Name (TM).

Everyone has a username, but many (inc me) don't have a Real Name set.
Merge pull request #6 from pozorvlak/dontdie

Request user scope so we get email addresses; use login names