Flatten editor/libeditor/base to editor/libeditor
Enable forcing the usage of the static CRT in libffi's msvc wrapper

This is required for AddressSanitizer builds with clang-cl.

The patch has been submitted upstream: https://github.com/atgreen/libffi/pull/123
Stop using the git command in rcs.mk since mozilla-build doesn't ship git
Bug 974270 - Re-enable the majority of datastore tests on b2g; r=khuey

I have no idea what has fixed these tests, but the try server says
they are fixed.  We always suspected that this is caused by a bug
in the mozapps code, and there has been some development there, and
elsewhere.
Remove unused Fennec reftest sandbox variables
Bug 1043562 - Hide the Contacts API from the contexts that lack sufficient privileges, such as Firefox desktop and Android