End of sprint 1

1. Add extra(lng,lat) to Point, so that when click on a point on the
chart, the exact point will show on the map.
2. Change the unit of DL Throughput from Kbps to Mbps, round to 0.1
Mbps.
3. Add a pull-down list to "Upload File" Page to select the number of
users at a sampling point.