MODS -> MARC XSL: fix typo in comment about leader position
rewrite ID for MARC records

to give ZVDD ID rather than the ID in the original system
update Solr index names for ZVDD
ZVDD: configure the actual server URL and use extraArgs to call Solr as needed

No more need for an intermediate proxy this was, thanks to Dennis’ hint on yazlist:
http://lists.indexdata.dk/pipermail/yazlist/2013-March/003665.html
improve logrotate configuration