-Added clear button directive.

-Added filter button directive.
-Moved the UI stuff to stf/common-ui.
-Added optional filtering to Details.
-Sync active tabs to local forage.
-Device List status filters by usability.
-Removed 750ms delay from filtering.

res/app/components/stf/common-ui/index.js

@@ -0,0 +1,5 @@
+module.exports = angular.module('stf/common-ui', [
+  require('./clear-button').name,
+  require('./filter-button').name,
+  require('./nothing-to-show').name
+])