Bug 944612 - Guard the ElfLoader sigaction wrapper against the SIGSEGV handler not being installed. r=glandium
Bug 975273 - Add missing include to unbreak desktop seccomp build. r=kang
Bug 977302 - Perform automatic text track selection. r=rillian

This takes care of automatic track selection for tracks with
the default attribute specified. However, it does not take
into account any user preferences set through Firefox such
as default language.
Bug 979512 - Add a command line option to split the tests and run a specified chunk. r=jgriffin
Bug 985803 - Explicitly disable harfbuzz in freetype. r=mwu