Download stops data from Mato
Summary: Make the app query the mato server, and download the stops data. It gets a bit involved, but it works!
Test Plan: Check build doesn't fail and test test test
Reviewed By: valerio.bozzolan
Subscribers: valerio.bozzolan, Libre BusTO
Tags: Libre BusTO
Differential Revision: https://gitpull.it/D75