did group_by functionality, version bump
added spec for when there's no tags
opp. change tag_name_attribute form name to _name and forgot something in refactor
change group_by to group_by_field
Merge pull request #2 from johnnyshields/master

Made tags setter be able to handle both String and Array + Mongoid 3 changes
s12chung pull request has been manually merged
fix build and dependency status to README
modified: .travis.yml by adding 'services: mongodb'
see http://about.travis-ci.org/blog/august-2012-upcoming-ci-environment-updates/
gem Version 0.8.2, is green just for Ruby 1.9.3 on Trevis CI ...
Merge branch 'master' of https://github.com/lgs/mongoid_taggable_with_context into use_array_as_base

Keeping version as 1.0.0