chore(angular): upgrade angular to version 1.3.13

Author: Antoine Pairet

Diff for: Gruntfile.js

@@ -18,7 +18,7 @@ module.exports = function(grunt) {
   grunt.util.linefeed = '\n';
 
   grunt.initConfig({
-    ngversion: '1.2.16',
+    ngversion: '1.3.13',
     bsversion: '3.1.1',
     modules: [],//to be filled in by build task
     pkg: grunt.file.readJSON('package.json'),