v1.9.0

This may be the last official ksh version release of zrep.
I wanted to make an official release bundling everything, before I move to v2 and bash.
A nice amount of bugfixes.

ChangeLog:

    added check for /etc/default/zrep
    added ZREP_CREATE_FLAGS and ZREP_INIT_REMOTE_PROPERTIES
    fixed definition of ZREP_SEND_FLAGS
    added ZREP_DATEFORMAT
    added ZREP_R fixes
    added zrep status -m
    more resume tweaks
    fixes for zrep refresh and allowed zrep -R refresh
    safeguard check for zrep takeover
    fixed an expire bug