(ITS#7489) Update slapd.overlays.5 manpage index

[ebackes@symas.com]

Full_Name: Emily Backes
Version: HEAD, RE24
OS: 
URL: 
Submission from: (NULL) (98.155.30.248)


The slapd.overlays (5) manpage index of overlays is out of date and doesn't list
all included documentation.  This patch fixes it, and should be applicable
against both master and RE24 branches.

http://www.symas.com/lucca/Update-slapd.overlays.5-manpage-index.patch.txt

This patch is summary of existing OpenLDAP materials and already included under
the copyright and licensing terms of the OpenLDAP project.