add connection established event

src/Illuminate/Database/DatabaseManager.php

@@ -4,6 +4,7 @@
 
 use Doctrine\DBAL\Types\Type;
 use Illuminate\Database\Connectors\ConnectionFactory;
+use Illuminate\Database\Events\ConnectionEstablished;
 use Illuminate\Support\Arr;
 use Illuminate\Support\ConfigurationUrlParser;
 use Illuminate\Support\Str;
@@ -99,6 +100,12 @@ public function connection($name = null)
             $this->connections[$name] = $this->configure(
                 $this->makeConnection($database), $type
             );
+
+            if ($this->app->bound('events')) {
+                $this->app['events']->dispatch(
+                    new ConnectionEstablished($this->connections[$name])
+                );
+            }
         }
 
         return $this->connections[$name];

src/Illuminate/Database/Events/ConnectionEstablished.php

@@ -0,0 +1,8 @@
+<?php
+
+namespace Illuminate\Database\Events;
+
+class ConnectionEstablished extends ConnectionEvent
+{
+    //
+}