VPN Hotspot 2.0: Client+ (#39)

Fix #13, #38. I don't have a lot of confidence that this would work very well for every device.

Also here's an SQL command that hopefully somebody could make into the app for me: `SELECT TrafficRecord.mac, SUM(TrafficRecord.sentPackets), SUM(TrafficRecord.sentBytes), SUM(TrafficRecord.receivedPackets), SUM(TrafficRecord.receivedBytes) FROM TrafficRecord LEFT JOIN TrafficRecord AS Next ON TrafficRecord.id = Next.previousId WHERE Next.id IS NULL GROUP BY TrafficRecord.mac;`

mobile/src/main/res/layout/listitem_repeater.xml

@@ -44,7 +44,7 @@
                     android:textAppearance="@style/TextAppearance.AppCompat.Subhead"/>
 
                 <be.mygod.vpnhotspot.widget.AutoCollapseTextView
-                    android:layout_width="match_parent"
+                    android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
                     android:text="@{data.addresses}"
                     android:textIsSelectable="true"