Bug 991476 - Decommission the ionmonkey tree. r=catlee

--HG--
extra : rebase_source : 3273ad7ed68af8d3adf2f1a9b0a4b4b1a6efccbf
Bug 864866 - On mozilla-b2g18 and mozilla-b2g18-v1_1_0hd (which are EOL): disable Linux desktop tests on minis, run marionette-web-api on EC2 (instead of minis) and run b2g emulator reftest sanity on EC2 (instead of minis). r=rail
Bug 992690 - Increase maxtime for browser-chrome-2 to 7200 seconds, r=armenzg
Bug 992219 - Disable mochitest-bc for Linux debug up to m-a. r=rail
Bug 864866 - On mozilla-b2g18 and mozilla-b2g18-v1_1_0hd (which are EOL): disable Linux desktop tests on minis, run marionette-web-api on EC2 (instead of minis) and run b2g emulator reftest sanity on EC2 (instead of minis). r=rail
Bug 920485 - Setting env vars to enable tooltool cache. r=rail
Merge bugs 991476, 864866, 992690, and 992219 to production.

--HG--
branch : production