bug 1011292 - change how desktop_unittest is chunked. r=jlund

--HG--
extra : rebase_source : 97bca0a070ef774d4f67105220bb595245da9e80
bug 875164 - kill b2g18+1.1hd. r=rail
Bug 1014318: Fix how we're using deepcopy to override symbols downloads for debug tests. r=aki

The current code actually changes the object branch_config refers to for
subsequent passes though the code.

It's more correct to modify branch_config to force the symbol downloading
settings to be what we want.
Bug 1014318: Removing usused code r=aki
Bug 1014212 - Remove the need to touch more than buildbot-configs when adding a new platform. r=catlee
Bug 1014318: Remove unused references to shaodw uploads. r=bustage
Bug 942167: Support non-unified mozharness device builds. r=aki
Bug 1018531 - Panda tests retrying more than necessary,r=rail
Bug 1019893 - Link to TBPL in trychooser job result emails; r=catlee
bug 1014287 - kill b2g26. r=rail

--HG--
extra : rebase_source : c40201059723602e84a05ad01822c72828854970
Bug 1021873, get rid of 'remove old symbols' step from nightlies, r=bhearsum
bug 996143 - fix release win32 tooltool. r=aki
bug 996143 - fix xulrunner win32 tooltool. r=nthomas
Bug 991707, add support for not running nightlies if no change, r=rail
Bug 1020384 - Shorten maxTime for the run tests steps of jetpack jobs; r=catlee
bug 797033: update balrog blob schema to support multiple partials - set required properties in buildbot factories. r=rail,nthomas