renamed keys to events

lib/emitters/custom-event-emitter.js

@@ -66,13 +66,13 @@ module.exports = (function() {
    */
   CustomEventEmitter.prototype.proxy = function(emitter, options) {
     options = Utils._.extend({
-      keys: proxyEventKeys,
-      skipKeys: []
+      events:     proxyEventKeys,
+      skipEvents: []
     }, options || {})
 
-    options.keys = Utils._.difference(options.keys, options.skipKeys)
+    options.events = Utils._.difference(options.events, options.skipEvents)
 
-    options.keys.forEach(function (eventKey) {
+    options.events.forEach(function (eventKey) {
       this.on(eventKey, function (result) {
         emitter.emit(eventKey, result)
       })