Merge pull request #18 from NickClark/master

Bump stable to latest RC 1.2.0-rc1
Add gem version badge (Retina friendly)

This makes it easier for people to see what the latest version is and access the gem's Rubygems information.
Merge pull request #20 from NickClark/patch-1

Add gem version badge (Retina friendly)
bumped to 1.2.0.rc2
Merge pull request #21 from HangingClowns/master

bumped to 1.2.0.rc2