threw out slate, mustache and zepto. replaced with minified.js

dev/custom-fn.js

@@ -1,5 +1,14 @@
 'use strict';
 
 module.exports = function() {
+  var Api = this;
+
+  var testHandler = function() {
+    console.debug('KEEGAN: EVENT', this);
+    Api.getItemByAppKey('background').off(testHandler);
+  };
+
+  Api.getItemByAppKey('background').on('change', testHandler);
+
   console.debug('custom fn worked');
 };