bug fix on didselectrowatindex
Added reverse-geolocation, call url according to gps, show distance between user and beacon  @ TableViewController; Added pin to mapView@BeaconDetailViewController; Fixed the size of upper left hand corner button @MainHostViewController
Merge branch 'feature/add_beacon_info' into develop
Init datasourceArray every time before calling url
Merge branch 'develop' of https://github.com/beaconHub/ios into develop

Conflicts:
	Podfile.lock
	iBeacon-Hackathon/TableViewController.m