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
Merge pull request #27 from AltitudeHK/photoResize

Temp solution for photo resizing but need to integrate with backend