Update to Angular 1.3

[flowingly-richard]

Update the repo to Angular 1.3 (based on open PR made by SSchaaf on original repo)

https://docs.angularjs.org/guide/migration#migrating-from-1-2-to-1-3

• removed the growl progress indicator from the test runner (not required and we could do with trimming some dependencies)
• ng-pattern update (http://stackoverflow.com/questions/20847979/ngpattern-binding-not-working) https://github.com/angular/angular.js/commit/1be9bb9d3527e0758350c4f7417a4228d8571440
• fix JSONification of hidden elements: //https://github.com/angular/angular.js/commit/c054288c9722875e3595e6e6162193e0fb67a251#diff-1d54c5f722aebc473dbe96f836ddf974R995
• Angular v1.3 only parse $$. corrct pa changed to $$_invalid