ng-message-include...

I got a bit out of synch because I rebased off angular master but primarily you should look at https://github.com/petebacondarwin/angular.js/commit/e2a582d71e4e3476642aa5a65758903620bceebd

I had to xit the test that deals with template cache as it causes my browser to hang. In any case the way I have implemented it you shouldn't need to mess about with the template cache since $http deals with this for us and all the child ngMessage directives just use the promise provided by ngMessageInput