Add The Serbian User Group to the usergroups. [1]
Add Ulmer BSD User Stammtisch to the list. [2]

PR: www/89063 [1]

		www/89068 [2]

Submitted by: Marko Milenovic <markom at bsd-srbija dot org> [1]

		Dirk Mader <sierrax at u-bus dot de> [2]