Backed out changeset 3b877866e65c (bug 1022235) since it just pushed the crashes to the next test.
Bug 996492 - Remove unused globalReport.errors. r=bwc
Bug 1011158 - Tighten the lock around OS.File |kill| operation. r=froydnj
Bug 1017706 - Make sure that healthreporter.jsm always initiates shutdown, even if it never receives quit-application. r=gps
Bug 1018686 - Fix latent NPE in Nursery.cpp. r=jonco