Move event emitter tests out into their own spec

spec/eventemitter.js

+(function (root, factory) {
+    define([
+        "mock",
+        "utils"
+        ], function (mock, utils) {
+            return factory(mock, utils);
+        }
+    );
+} (this, function (mock, utils) {
+    return describe("The Converse Event Emitter", $.proxy(function(mock, utils) {
+        window.localStorage.clear();
+
+        it("allows you to subscribe to emitted events", function () {
+            this.callback = function () {};
+            spyOn(this, 'callback');
+            converse.on('onInitialized', this.callback);
+            converse.emit('onInitialized');
+            expect(this.callback).toHaveBeenCalled();
+            converse.emit('onInitialized');
+            expect(this.callback.callCount, 2);
+            converse.emit('onInitialized');
+            expect(this.callback.callCount, 3);
+        });
+
+        it("allows you to listen once for an emitted event", function () {
+            this.callback = function () {};
+            spyOn(this, 'callback');
+            converse.once('onInitialized', this.callback);
+            converse.emit('onInitialized');
+            expect(this.callback).toHaveBeenCalled();
+            converse.emit('onInitialized');
+            expect(this.callback.callCount, 1);
+            converse.emit('onInitialized');
+            expect(this.callback.callCount, 1);
+        });
+
+        it("allows you to stop listening or subscribing to an event", function () {
+            this.callback = function () {};
+            this.anotherCallback = function () {};
+            this.neverCalled = function () {};
+
+            spyOn(this, 'callback');
+            spyOn(this, 'anotherCallback');
+            spyOn(this, 'neverCalled');
+            converse.on('onInitialized', this.callback);
+            converse.on('onInitialized', this.anotherCallback);
+
+            converse.emit('onInitialized');
+            expect(this.callback).toHaveBeenCalled();
+            expect(this.anotherCallback).toHaveBeenCalled();
+
+            converse.off('onInitialized', this.callback);
+
+            converse.emit('onInitialized');
+            expect(this.callback.callCount, 1);
+            expect(this.anotherCallback.callCount, 2);
+
+            converse.once('onInitialized', this.neverCalled);
+            converse.off('onInitialized', this.neverCalled);
+
+            converse.emit('onInitialized');
+            expect(this.callback.callCount, 1);
+            expect(this.anotherCallback.callCount, 3);
+            expect(this.neverCalled).not.toHaveBeenCalled();
+        });
+    }, converse, mock, utils));
+}));

tests_main.js

@@ -115,6 +115,7 @@ require([
                 "jasmine-console-reporter",
                 "jasmine-junit-reporter",
                 "spec/converse",
+                "spec/eventemitter",
                 "spec/controlbox",
                 "spec/chatbox",
                 "spec/chatroom"