revert fat arrows

src/js/component.js

@@ -599,7 +599,7 @@ Component.prototype.on = function(first, second, third){
     let thisComponent = this;
 
     // When this component is disposed, remove the listener from the other component
-    let removeOnDispose = ()=> {
+    let removeOnDispose = function() {
       thisComponent.off(target, type, fn);
     };
     // Use the same function ID so we can remove it later it using the ID
@@ -610,7 +610,7 @@ Component.prototype.on = function(first, second, third){
     // If the other component is disposed first we need to clean the reference
     // to the other component in this component's removeOnDispose listener
     // Otherwise we create a memory leak.
-    let cleanRemover = ()=> {
+    let cleanRemover = function() {
       thisComponent.off('dispose', removeOnDispose);
     };
     // Add the same function ID so we can easily remove it later
@@ -1078,7 +1078,7 @@ Component.prototype.emitTapEvents = function(){
     }
   });
 
-  let noTap = ()=> {
+  let noTap = function() {
     couldBeTap = false;
   };
   // TODO: Listen to the original target. http://youtu.be/DujfpXOKUp8?t=13m8s