Updating the base url to match what the stock bluetooth_database_http_server.py
server does.

Explicitly setting port 8163, and POSTing to bluetoothdata/.

Hostname is still hardwired.  I'd like to make this a text field that can
be changed in the iOS app itself.
Merge remote-tracking branch 'upstream/master'

Conflicts:
	client/ios/BlueToothScan/BlueToothScan/BTSRestTransport.m