slony1-ctl - slony-ctl: Per Richard Yen: "We need an extra sync event

Log Message:
-----------
Per Richard Yen:
"We need an extra sync event because by the time the FAIL OVER finishes
and generates a SYNC event, the WAIT FOR EVENT can't process it
because the SYNC has already been propagated."

Modified Files:
--------------
    slony-ctl/outils:
        slony_fail.sh (r1.6 -> r1.7)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/slony1-ctl/slony-ctl/outils/slony_fail.sh?r1=1.6&r2=1.7)