Bug 925993 - Ensure clang-plugin is built before everything else; r=gps
Bug 926007 - Backout changeset 0887088eee1a (bug 842341) because it's only used to support msys-paths with gnu make on windows, which is an unsupported setup; r=gps
Bug 926010 - Create 'binaries' stamp when recursing build/clang-plugin; r=jcranmer
Bug 926126 - Enable pseudo derecurse on releng builds, and enable parallel export; r=gps