Added project contributors endpoint

Author: Matt Humphrey

lib/Gitlab/Api/Repositories.php

@@ -241,4 +241,13 @@ public function deleteFile($project_id, $file_path, $branch_name, $commit_messag
             'commit_message' => $commit_message
         ));
     }
+
+    /**
+     * @param int $project_id
+     * @return mixed
+     */
+    public function contributors($project_id)
+    {
+        return $this->get($this->getProjectPath($project_id, 'repository/contributors'));
+    }
 }

lib/Gitlab/Model/Contributor.php

@@ -0,0 +1,51 @@
+<?php namespace Gitlab\Model;
+
+use Gitlab\Client;
+
+/**
+ * Class Contributor
+ *
+ * @property-read string $name
+ * @property-read string $email
+ * @property-read int $commits
+ * @property-read int $additions
+ * @property-read int $deletions
+ * @property-read Project $project
+ */
+class Contributor extends AbstractModel
+{
+    /**
+     * @var array
+     */
+    protected static $properties = array(
+        'name',
+        'email',
+        'commits',
+        'additions',
+        'deletions',
+        'project'
+    );
+
+    /**
+     * @param Client $client
+     * @param Project $project
+     * @param array $data
+     * @return Contributor
+     */
+    public static function fromArray(Client $client, Project $project, array $data)
+    {
+        $contributor = new static($project, $client);
+
+        return $contributor->hydrate($data);
+    }
+
+    /**
+     * @param Project $project
+     * @param Client $client
+     */
+    public function __construct(Project $project, Client $client = null)
+    {
+        $this->setClient($client);
+        $this->setData('project', $project);
+    }
+} 

lib/Gitlab/Model/Project.php

@@ -989,4 +989,19 @@ public function removeLabel($name)
 
         return true;
     }
+
+    /**
+     * @return array
+     */
+    public function contributors()
+    {
+        $data = $this->api('repo')->contributors($this->id);
+
+        $contributors = array();
+        foreach ($data as $contributor) {
+            $contributors[] = Contributor::fromArray($this->getClient(), $this, $contributor);
+        }
+
+        return $contributors;
+    }
 }