Bug 837292 - Part 2: Report new measurement version only; r=rnewman
Bug 837292 - Part 3: Add a TelemetryEnabled flag to FHR. r=gps
Bug 850483 - Record "blocklist enabled" flag in FHR; r=rnewman
Bug 837292 - Part 4: Followup to unbust part 2; r=rnewman
Bug 850450 - Longitudinal recording of build ID in FHR; r=rnewman
Merge mozilla-central into services-central