Update Gemfile and .ruby-version
Update jQuery to 1.11.1/2.1.1; remove exoskeleton
Update Backbone, Stickit, Chaplin, Modernizr, Supermodel, and Underscore
Upgrade to Rails 4.1.4
Upgrade Teaspoon to 0.8.0
Update Gemfile; Rspec to 3
Migrate View to HamlView
Disable extraneous CSS and JS code
Add KSS code
Add React JS support
Convert /users to use React components