Add support for Google Sitelinks

fixes #187

src/client/site/common/item_selector/item_selector_controller.coffee

@@ -82,6 +82,7 @@ module.exports = class ItemSelectorController extends BaseController
         @model.hint = @$hintField.val()
         @tryRefresh()
         @onResultSelected @_elementControllers[0]
+        return false
 
     onPopupClicked: (event)->
         return false
@@ -90,6 +91,7 @@ module.exports = class ItemSelectorController extends BaseController
         @_session.resolve controller.model.slug
         @_session = null
         @_close()
+        return false
 
     onResultSelected: (controller)->
         for c in @_elementControllers
@@ -98,6 +100,8 @@ module.exports = class ItemSelectorController extends BaseController
         if controller?
             controller.selected = true
 
+        return false
+
     onScreenClicked: (event)->
         @_close()
         return false