Prepare for next development iteration.
Merge branch 'master'
Bumped version to 2.1.0.
Add support for multiple keys in AngularCache.get
Merge pull request #75 from roryf/get_multiple_keys

Add support for multiple keys in AngularCache.get
Merge branch 'master'
Clean up.

Fixes #68.
Now testing against multiple versions of angular.js #72
Merge pull request #73 from jmdobry/2.1.0

2.1.0