Added ref_name parameter to repo commits calls

Author: m4tthumphrey

lib/Gitlab/Api/Repositories.php

@@ -20,11 +20,12 @@ public function tags($project_id)
         return $this->get('projects/'.urlencode($project_id).'/repository/tags');
     }
 
-    public function commits($project_id, $page = 1, $per_page = self::PER_PAGE)
+    public function commits($project_id, $page = 1, $per_page = self::PER_PAGE, $ref_name = null)
     {
         return $this->get('projects/'.urlencode($project_id).'/repository/commits', array(
             'page' => $page,
-            'per_page' => $per_page
+            'per_page' => $per_page,
+            'ref_name' => $ref_name
         ));
     }
 

lib/Gitlab/Model/Branch.php

@@ -3,6 +3,7 @@
 namespace Gitlab\Model;
 
 use Gitlab\Client;
+use Gitlab\Api\AbstractApi as Api;
 
 class Branch extends AbstractModel
 {
@@ -52,4 +53,9 @@ public function unprotect()
 
         return Branch::fromArray($this->getClient(), $this->project, $data);
     }
+
+    public function commits($page = 1, $per_page = Api::PER_PAGE)
+    {
+        return $this->project->commits($page, $per_page, $this->name);
+    }
 }

lib/Gitlab/Model/Project.php

@@ -219,9 +219,9 @@ public function tags()
         return $tags;
     }
 
-    public function commits($page = 1, $per_page = Api::PER_PAGE)
+    public function commits($page = 1, $per_page = Api::PER_PAGE, $ref_name = null)
     {
-        $data = $this->api('repo')->commits($this->id, $page, $per_page);
+        $data = $this->api('repo')->commits($this->id, $page, $per_page, $ref_name);
 
         $commits = array();
         foreach ($data as $commit) {