Fix search controller reloading when a text parameter is added

This replaces the use of $stateParams with parsing the query string
in the given URL instead, using $location. This way the controller
doesn't reload when a text parameter is added to the URL, which was
causing non-text criteria to be lost upon the addition of a text
criterion.

Change-Id: If1fbf8ce4a06538c97aa430cf5c8e703ac453db0
Task: 3493

src/app/search/controller/search_controller.js

@@ -18,7 +18,7 @@
  * This controller provides initialization logic for the generic search view.
  */
 angular.module('sb.search').controller('SearchController',
-    function ($log, $q, $scope, Criteria, $stateParams) {
+    function ($log, $q, $scope, Criteria, $location) {
         'use strict';
 
         /**
@@ -39,9 +39,10 @@ angular.module('sb.search').controller('SearchController',
         /**
          * If a 'q' exists in the state params, go ahead and add it.
          */
-        if ($stateParams.hasOwnProperty('q') && !!$stateParams.q) {
+        var params = $location.search();
+        if (params.hasOwnProperty('q') && !!params.q) {
             $scope.defaultCriteria.push(
-                Criteria.create('Text', $stateParams.q)
+                Criteria.create('Text', params.q)
             );
         }
     }

src/app/search/module.js

@@ -26,7 +26,7 @@ angular.module('sb.search',
         // Set our page routes.
         $stateProvider
             .state('sb.search', {
-                url: '/search?q',
+                url: '/search',
                 templateUrl: 'app/search/template/index.html',
                 controller: 'SearchController'
             });