add convenience methods

Author: alexandresalome

src/Gitonomy/Git/Commit.php

@@ -291,6 +291,16 @@ public function getShortMessage($length = 50, $preserve = false, $separator = '.
         return $message;
     }
 
+    /**
+     * Resolves all references associated to this commit.
+     *
+     * @return array An array of references (Branch, Tag, Squash)
+     */
+    public function resolveReferences()
+    {
+        return $this->repository->getReferences()->resolve($this);
+    }
+
     /**
      * Find branch containing the commit
      *

src/Gitonomy/Git/Log.php

@@ -44,7 +44,7 @@ class Log implements \Countable, \IteratorAggregate
      */
     protected $limit;
 
-    public function __construct(Repository $repository, $revisions, $paths, $offset = 0, $limit = null)
+    public function __construct(Repository $repository, $revisions, $paths = null, $offset = 0, $limit = null)
     {
         $this->repository = $repository;
         $this->revisions  = (array) $revisions;

src/Gitonomy/Git/Reference.php

@@ -103,4 +103,20 @@ public function delete()
     {
         $this->repository->getReferences()->delete($this->getFullname());
     }
+
+    /**
+     * @return Repository
+     */
+    public function getRepository()
+    {
+        return $this->repository;
+    }
+
+    /**
+     * @return Log
+     */
+    public function getLog()
+    {
+        return new Log($this->repository, $this->getFullname());
+    }
 }