Merge pull request #1 from fgarbagnati/initial-setup

Initial setup
Merge pull request #2 from fgarbagnati/user-sign-up

User sign up
Merge pull request #3 from fgarbagnati/user-sign-up

User sign up
made sign in template
added sign in route
created create_session.js
added render function to create_session
added render function to router
added script tag for create_session.js
Merge pull request #4 from fgarbagnati/user-sign-in

User sign in
modifying views, collections, models to start adding users
sign up button has some functionality now, but doesn't yet add user
added ids to input fields in index.html, having issues with gathering the form data on the sign up page