Add slugs to project manage page

Summary: Minor, just shows the slugs on the manage project page, also normalized language to "details"

Test Plan: review a project with slugs, description.

Reviewers: amckinley

Reviewed By: amckinley

Subscribers: epriestley, Korvin

Differential Revision: https://secure.phabricator.com/D17985

src/applications/project/controller/PhabricatorProjectController.php

@@ -166,4 +166,12 @@ abstract class PhabricatorProjectController extends PhabricatorController {
       ->buildResponse();
   }
 
+  public function renderHashtags(array $tags) {
+    $result = array();
+    foreach ($tags as $key => $tag) {
+      $result[] = '#'.$tag;
+    }
+    return implode(', ', $result);
+  }
+
 }