Fix README
Add dev/prod section, rspec gems
Add omniauth

* Added haml-rails gem so we can start using haml for our views
* Added omniauth-twitter gem
* Added omniauth-identity gem
* Setup dotenv file by gem installing foreman
Fix omniauth-twitter gem typo
Add omniauth-twitter

* Added home controller and view for landing page
* Added sessions controller to create and destroy sessions
* Added user model to find user by provider and uid or create new user
Add facebook and google auth.  Removed twitter auth.  Created map page
Merge with Xiao's gemfile changes
Add Posts
Add Post model
Add models and initial views for tabs
Build models