Bug 917593 - Don't assert for zero-length strings. r=Waldo
Bug 921399 - Fix memory leak. r=gabor
Bug 920553 - Hoist GlobalProperties out of SandboxOptions. r=gabor
Bug 920553 - Make GlobalProperties::Parse follow JSAPI exception convention. r=gabor

Anything that returns false should set an exception unless either (a) the
failure resulted from another JSAPI call that would have set an exception or
(b) the failure indicates OOM.
Bug 920553 - Introduce Cu.importGlobalProperties API. r=gabor
Bug 919830 - Mark a variable only used in an assertion DebugOnly. r=mak

--HG--
extra : rebase_source : d0203b051e011bf9a2d46216f798904db879c49d
Bug 920782 - Don't trigger GCs from threads with an exclusive context, r=billm.