UC-456: SNMP service will not restart services more than once unless the process runs longer than 10s

- parse uptime and do not run cron if less than 2 minutes, that is to be sure system is up and running
- use cfengine to start services, that is exercise all bundles. This way it is guaranteed that services are started in proper order
- redirect output to snmp-fix-process-cron.log in order to prevent email sending