Possibility to define the default enable trackers when creating a project (#13175).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11394 e93f8b46-1217-0410-a6f0-8f06a7374b81

config/settings.yml

@@ -179,6 +179,9 @@ default_projects_modules:
   - boards
   - calendar
   - gantt
+default_projects_tracker_ids:
+  serialized: true
+  default: 
 # Role given to a non-admin user who creates a project
 new_project_user_role_id:
   format: int