Added query input binding

panels/stringquery/module.html

@@ -0,0 +1,7 @@
+<div ng-controller='stringquery'>
+  <h4 ng-hide="_.isUndefined(panel.title)">{{panel.title}}</h4>
+    <form class="form-search">
+      <input type="text" class="input-medium search-query" ng-model="query" style="width:90%">
+      <button type="submit" class="btn" ng-click="send_query(query)">Search</button>
+    </form>
+</div>