Bug 978211 followup, make compare-mozconfig work on Win64 again, r=glandium a=NPOTB

--HG--
extra : rebase_source : 615a26cc88c663b1c4b1b8ad7b32e3107962f019
Bug 1072073 - pretty-l10n-check should also be -j1; r=glandium a=NPOTB
Bug 1013730 - Have mach ignore broken disk io stats; r=gps a=NPOTB

This works around the "RuntimeError: couldn't find any physical disk"
issue on Windows when using 'diskperf -n'
Bug 1077597 - force -j1 for {pretty-}package-tests; r=glandium a=NPOTB
Bug 1084163 - Remove 'make check' from automation/build; r=glandium a=NPOTB

'make check' is somewhat special in that we want to trigger testers
before it finishes. Since moving sendchange into mach is difficult and
'make check' may be going away in the future anyway, just pull it out
for now.

Also remove the MOZ_AUTOMATION_*_SENDCHANGE flags since we aren't using
them.
Bug 1085026 - Use sha512 hashes for mar files; r=glandium a=NPOTB
Bug 1087104 - Implement partial mar generation in make for 'mach build'; r=glandium a=NPOTB
Bug 1087104 - Set the partialInfo property for Balrog; r=glandium a=NPOTB