incorporate the debugger

src/ace/BackgroundTokenizer.js

@@ -33,8 +33,6 @@ ace.BackgroundTokenizer = function(tokenizer) {
 
         self.fireUpdateEvent(startLine, textLines.length - 1);
     };
-
-    this.$initEvents();
 };
 
 (function(){

src/ace/Document.js

@@ -1,8 +1,6 @@
 ace.provide("ace.Document");
 
 ace.Document = function(text, mode) {
-    this.$initEvents();
-
     this.lines = [];
     this.modified = true;
     this.selection = new ace.Selection(this);

src/ace/MEventEmitter.js

@@ -2,11 +2,9 @@ ace.provide("ace.MEventEmitter");
 
 ace.MEventEmitter = function() {
 
-    this.$initEvents = function() {
-        this.$eventRegistry = {};
-    };
-
     this.$dispatchEvent = function(eventName, e) {
+        this.$eventRegistry = this.$eventRegistry || {};
+
         var listeners = this.$eventRegistry[eventName];
         if (!listeners || !listeners.length) return;
 
@@ -19,6 +17,8 @@ ace.MEventEmitter = function() {
     };
 
     this.addEventListener = function(eventName, callback) {
+        this.$eventRegistry = this.$eventRegistry || {};
+
         var listeners = this.$eventRegistry[eventName];
         if (!listeners) {
           var listeners = this.$eventRegistry[eventName] = [];
@@ -29,6 +29,8 @@ ace.MEventEmitter = function() {
     };
 
     this.removeEventListener = function(eventName, callback) {
+        this.$eventRegistry = this.$eventRegistry || {};
+
         var listeners = this.$eventRegistry[eventName];
         if (!listeners) {
           return;

src/ace/ScrollBar.js

@@ -1,8 +1,6 @@
 ace.provide("ace.ScrollBar");
 
 ace.ScrollBar = function(parent) {
-    this.$initEvents();
-
     this.element = document.createElement("div");
     this.element.className = "sb";
 

src/ace/Selection.js

@@ -3,8 +3,6 @@ ace.provide("ace.Selection");
 ace.Selection = function(doc) {
     this.doc = doc;
 
-    this.$initEvents();
-
     this.clearSelection();
     this.selectionLead = {
         row: 0,

src/test/ace/EventEmitterTest.js

@@ -1,6 +1,5 @@
-var EventEmitter = function() {
-    this.$initEvents();
-};
+var EventEmitter = function() {};
+
 ace.implement(EventEmitter.prototype, ace.MEventEmitter);
 
 var EventEmitterTest = new TestCase("EventEmitterTest", {
@@ -16,5 +15,4 @@ var EventEmitterTest = new TestCase("EventEmitterTest", {
         emitter.$dispatchEvent("juhu");
         assertTrue(called);
     }
-});
-
+});