Merge pull request #1719 from SaitoWu/features/sharedRepository

add shared repository support

lib/gitlab/backend/gitolite_config.rb

@@ -151,6 +151,9 @@ module Gitlab
       repo.add_permission("RW+", "", name_writers) unless name_writers.blank?
       repo.add_permission("RW+", "", name_masters) unless name_masters.blank?
 
+      # Add sharedRepository config
+      repo.set_git_config("core.sharedRepository", "0660")
+
       repo
     end