Reverted test modification and fixed schema

Author: jenssegers

Diff for: src/Jenssegers/Mongodb/Schema/Blueprint.php

@@ -92,7 +92,7 @@ public function dropIndex($columns = null)
 	 * @param  string|array  $columns
 	 * @return bool
 	 */
-	public function unique($columns = null)
+	public function unique($columns = null, $name = null)
 	{
 		$columns = $this->fluent($columns);
 		$this->index($columns, array('unique' => true));

Diff for: tests/ConnectionTest.php

@@ -52,7 +52,7 @@ public function testMultipleConnections()
 
 		# Add fake host
 		$db = $app['config']['database.connections']['mongodb'];
-		$db['host'] = array($db['host'], '0.0.0.0');
+		$db['host'] = array($db['host'], '1.2.3.4');
 
 		$connection = new Connection($db);
 		$mongoclient = $connection->getMongoClient();