Merge pull request #48 from arkadyp/venmologin

Creates backbone structure for venmo auth
Merge pull request #49 from arkadyp/venmologin

Enables two stage authentication with Copia/Venmo
Fixes styling
Adds styling for calendar
Adds styling for bottom buttons
Styles sign in form
Styles signup form, need directive to verify password match
Merge pull request #50 from juanmarinbear/UIUX

Uiux
Refactors getLoan route in lendService to pass user_id and session_token
Adds VenmoAuthController to post to server w/ userId & venmoId
Adds venmoAuth controller/view to router and loads script in index.html