Adding a Readme and a composer.json for the Event library

src/Event/README.md

@@ -0,0 +1,45 @@
+# CakePHP Event Library
+
+This library emulates several aspects of how events are triggered and managed in popular JavaScript
+libraries such as jQuery: An event object is dispatched to all listeners. The event object holds information
+about the event, and provides the ability to stop event propagation at any point.
+Listeners can register themselves or can delegate this task to other objects and have the chance to alter the
+state and the event itself for the rest of the callbacks.
+
+## Usage
+
+Collections can be created using an array or Traversable object.  A simple use of a Collection would be:
+
+```php
+use Cake\Event\Event;
+use Cake\Event\EventManagerTrait;
+
+class Orders {
+
+	use EventManagerTrait;
+
+	public function placeOrder($order) {
+		$this->doStuff();
+		$event = new Event('Orders.afterPlace', $this, [
+			'order' => $order
+		]);
+		$this->eventManager()->dispatch($event);
+	}
+}
+
+$orders = new Orders();
+$orders->eventManager()->attach(function($event) {
+	// Do something after the order was placed
+	...
+}, 'Orders.afterPlace');
+
+$orders->placeOrder($order);
+```
+
+The above code allows you to easily notify the other parts of the application that an order has been created.
+You can then do tasks like send email notifications, update stock, log relevant statistics and other tasks
+in separate objects that focus on those concerns.
+
+## Documentation
+
+Please make sure you check the [official documentation](http://book.cakephp.org/3.0/en/core-libraries/events.html)

src/Event/composer.json

@@ -0,0 +1,12 @@
+{
+    "name": "cakephp/event",
+    "description": "CakePHP event dispatcher library that helps implementing the observer pattern",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "CakePHP Community",
+            "homepage": "http://cakephp.org"
+        }
+    ],
+    "minimum-stability": "beta"
+}