implemented Users::following (API 2.0)

Author: vimishor

docs/users.md

@@ -19,6 +19,10 @@ $user->get($username);
 $user->followers($username);
 ```
 
+### Get a list of accounts the user is following: (API 2.0)
+```php
+$user->following($username);
+```
 
 ----
 

lib/Bitbucket/API/Users.php

@@ -49,6 +49,20 @@ public function followers($username)
         );
     }
 
+    /**
+     * Get a list of accounts the user is following
+     *
+     * @access public
+     * @param  string           $username
+     * @return MessageInterface
+     */
+    public function following($username)
+    {
+        return $this->getClient()->setApiVersion('2.0')->get(
+            sprintf('users/%s/following', $username)
+        );
+    }
+
     /**
      * Get account
      *

test/Bitbucket/Tests/API/UsersTest.php

@@ -56,6 +56,24 @@ public function testGetUserFollowers()
         $this->assertEquals($expectedResult, $actual);
     }
 
+    public function testGetUserFollowing()
+    {
+        $endpoint       = 'users/john-doe/following';
+        $expectedResult = $this->fakeResponse(array('dummy'));
+
+        $client = $this->getHttpClientMock();
+        $client->expects($this->once())
+            ->method('get')
+            ->with($endpoint)
+            ->will($this->returnValue($expectedResult));
+
+        /** @var \Bitbucket\API\Users $user */
+        $user   = $this->getClassMock('Bitbucket\API\Users', $client);
+        $actual = $user->following('john-doe');
+
+        $this->assertEquals($expectedResult, $actual);
+    }
+
     public function testGetAccountInstance()
     {
         $this->assertInstanceOf('\Bitbucket\API\Users\Account', $this->users->account());