these are extra scripts/sources to do little things around upkg repos
these extras are not installed per default and are in most cases not
directly usable; they need to be adopted to the situation they're
used in.

specs.php: propagate changes in a svn repo to different checkouts
postbin.php: can be used to implement the server side of the store
	binary process if the server happens to be a http server
upkg.inc.php: needed by postbin.php and specs.php
sync.sh: rsyncs different upkg repos with eachother
perms.c: used to set all permissions and owners inside a repo
	correctly; this script needs to be watched with care at and needs
	to be run as SUID root (hence a C program); its also needed by
postbin.php and specs.php

