change random time period for the cron jobs (bnc#718000, bnc#779544)
add script to reschedule daily sync (bnc#787129)
call reschedule sync in post (bnc#787129)
do not reschedule again
reschedule also the gen-report job
version 1.0.19
create /var/lib/smt directory
require bc, needed by reschedule-sync.sh (bnc#796899)