added template for Facebook OAuth
Merge pull request #23 from AltitudeHK/OAuth

added template for Facebook OAuth
applied facebook OAuth / callback function on success has not been defined
added a callback function to facebook login to redirect to the main page ('/') with 302 status
Merge pull request #24 from AltitudeHK/facebook

Facebook
removed private key
Merge pull request #25 from AltitudeHK/clientAuth

Client auth
Created window service for getting window height and width
Renamed services and controllers
Temp solution for photo resizing but need to integrate with backend. Assuming that data from backend is sent in a particular format.
Removed window service since  does the same thing. Removed window service reference from photo service
Fix index.html so that controllers and services are using the correct name