Fix date format in changelog
Fix date format in changelog

mtomov/alchemy_cms,AlchemyCMS/alchemy_cms,mixandgo/alchemy_cms,mamhoff/alchemy_cms,chalmagean/alchemy_cms,chalmagean/alchemy_cms,mixandgo/alchemy_cms,chalmagean/alchemy_cms,AlchemyCMS/alchemy_cms,mamhoff/alchemy_cms,robinboening/alchemy_cms,mtomov/alchemy_cms,mtomov/alchemy_cms,robinboening/alchemy_cms,mtomov/alchemy_cms,mixandgo/alchemy_cms,mamhoff/alchemy_cms,chalmagean/alchemy_cms,AlchemyCMS/alchemy_cms,mixandgo/alchemy_cms,robinboening/alchemy_cms