WIP
functional backend and tests for tags - integration to post views pending
temp for schema
resolve conflicts - merge master into post_tags
Merge branch 'master' of github.com:purple-martins-2013/seth-steve-mark-dan-inkreactor
Merge branch 'master' into post_tags
migration post-merge
integrate tags into post views
Merge commit 'ef5ad78' into post_tags
Merge pull request #2 from purple-martins-2013/post_tags

Implement tagging on posts