Added support for get locations, marking em on map and re-using cached lat/longs
Added support for get locations, marking em on map and re-using cached lat/longs

This commit adds the following features:
- Facility to make chunked requests for locations
	+ chunk size and offset can be specified in the request if needed
- Facility to update the data at the backend with lat long info for a given location
	+ this reduces the number of google geocoding api calls
- Methods to hide and show markers
	+ these will come in handy when adding the filtering + autocompletion features

zeusdeux/sf-movies