Bug 838924 - Fix try/catch introduced in bug 835210 which caused FOTA updates to still be broken. r=marshall_law, a=tef+
Bug 826471 - Add JSAutoCompartment in nsWindowSH::NewResolve. r=bholley, a=bajaj
Bug 836505 - We don't care about the active count but only the active state. r=fabrice, a=tef+
Bug 836737 - Don't launch the app when we close a notification. r=vingtetun, a=tef+
Bug 838615 - Add missing process-priority nice values to b2g.js. r=cjones, a=lsblakk

This sets background_perceivable's nice at 10 and
background{,_homescreen}'s nice at 20.  I'm a bit worried that this will
de-prioritize background_perceivable so much that music players may
start skipping.  But we need to test.
Bug 838625 - Add logcat logging to ProcessPriorityManager. r=cjones, a=bajaj

The logging is placed behind an #if 0 guard.
Bug 838625 - Add hal::ProcessPriorityToString and use it in ProcessPriorityManager logging. r=cjones, a=bajaj