Sync to api v1.1 document

Updated README

README.md

@@ -25,20 +25,12 @@ create blew composer.json on your project directory and execute ``composer insta
 
     /path/to/project/composer.json
     {
-        "repositories": [
-            {
-                "type": "vcs",
-                "url": "https://github.com/makotokw/php-twient"
-            }
-        ],
         "require": {
             "makotokw/twient": "dev-master"
         }
     }
 
 
-
-
 Get timeline
 ----------------------------------------------------
 

src/Twient/Twitter/V1dot1.php

@@ -121,6 +121,16 @@ public function statusesOembed($params = array())
         return $this->get('statuses/oembed', $params);
     }
 
+    /**
+     * @param array $params
+     * @return array
+     * @see https://dev.twitter.com/docs/api/1.1/get/statuses/retweeters/ids
+     */
+    public function statusesRetweetersIds($params = array())
+    {
+        return $this->get('statuses/retweeters/ids', $params);
+    }
+
     /**
      * @param array $params
      * @return array
@@ -791,6 +801,16 @@ public function listsMembersDestroyAll($params = array())
         return $this->post('lists/members/destroy_all', $params);
     }
 
+    /**
+     * @param array $params
+     * @return array
+     * @see https://dev.twitter.com/docs/api/1.1/get/lists/ownerships
+     */
+    public function listsOwnerships($params = array())
+    {
+        return $this->get('lists/ownerships', $params);
+    }
+
     /**
      * @param array $params
      * @return array