Also added "composer fix" command. Change-Id: I6f3f29f03abb607fbca9cec6f140875f2a3468a0
* Rename JsonMessageLoader to ULSJsonMessageLoader * Correct the return type of mw.uls.loadLocalization Follow up: Ic39dec1c484982fb07edd167e83794c0b5f470ee Change-Id: I13c64a5e89ac75be8a95d951658018a78534f466