Bug 394984: Enable any admin user on OSX to update Firefox. r=rstrong, smichaud, bbondy
Bug 983728: Start signing Firefox .app bundle and org.mozilla.updater binary for elevated updates on OSX. r=smichaud, bhearsum

--HG--
rename : toolkit/mozapps/update/updater/macbuild/Contents/Info.plist => toolkit/mozapps/update/updater/macbuild/Contents/Info.plist.in
Backout 7cdd7f6f2659 and c4309457d036. DONTBUILD