adjust conf.{xml.in,rnc} for signer pidfile and socket
turns out there is already code for this in the signer, adjust name to match that
signer client now must parse conf.xml to get socket location
parse commandline options in signer client
put enforcer pidfile location in conf.xml.in and conf.rnc
enforcer: parse pidfile from conf
adapt ods-control to take values from conf
manpage checkconf
add manpage checkconf to configure
add test for 620