Use dict in fakemobileclient for data, add default to BeaconMeasurementDataSchema (#206)

* Fakemobileclient should return a dict of wifi.data, instead of data, since we have bluetooth beacons too

* Use dict instead of list for beacon measurement in fakemobileclient and editor script

* Use distance directly

* BeaconMeasurementDataSchema add default

tools/fakemobileclient.py

@@ -46,7 +46,7 @@ class FakeMobileClientHandler(http.server.BaseHTTPRequestHandler):
         self.send_header('Content-Type', 'application/json')
         self.send_header('Access-Control-Allow-Origin', '*')
         self.end_headers()
-        self.wfile.write(json.dumps({'data': stations}).encode())
+        self.wfile.write(json.dumps({'wifi':stations}).encode())
         return True