configure backend mock resources with AngularJS $injector

• regexpUrl

isolated in one scope, and added more intelligence, that's allow, configure some regexp using string or RegExp object

• configure backend mock resources with AngularJS $injector

with this, now it's possible to configure resource, like service, factory or controller, with dependency injection

angular.mock.backend.addResource(function($rootScope, httpBackend, regexpUrl) { ... });

or

angular.mock.backend.addResource(
  [ '$rootScope', '$httpBackend', 'regexpUrl',
function(scope, httpBackend, regexpUrl) { ... }]);