Bug 978211 - Windows configs; r=glandium
Bug 978211 - OSX automation configs; r=glandium
Bug 978211 - various asan/mar/pretty/mach fixes; r=glandium

 - Linux ASAN nightly builds do not do update packaging
 - Only set mar properties if the mar file was actually created
 - Unset MOZ_SIGN_CMD for pretty-* steps
Bug 914563 - re-enable build resource recording on Windows; r=gps