Merge pull request #1 from bobolinks-2014/setup

Setup
added validations
added uniqueness to users email
added bcrypt
added validations for password
added signup page for users
friday schedule
merge. schedule
added helpers
almost done --no tests
Merge pull request #2 from bobolinks-2014/user_auth

User auth
figured out some sentiment analysis
Updated models and migratiosn to include categories and pairs
Merge pull request #3 from bobolinks-2014/setup

Updated models and migratiosn to include categories and pairs
testing kimono
merge
make kimono calls from ruby and add categories to all articles
refactor
add lib
fixed article_tags and tags migration files