Fix logclient

Implements option 2 for 835 suggested solutions
WA for FUEL-842, FUEL-843

- StdErr must not be used unless all quantum+agents init & ocf scripts would redirect its stderr to logfiles (&>>/var/log/foo/bar.log)
- Thus, undo powerfull debug via stderr - #373
- Remove use_stderr, use logdir options for stdout instead
- Dirty hack for quantum init script to remove all its --log-config from daemon, cuz it breaks logging
- Use rsyslog::imfile monitoring features for local openstack logfiles for syslog + debug case
- Fix imfile templates for quantum debug to use normalized syslogtags
- Get rid of top scoped global vars references (for logging features)
- Add /var/log/{syslog,corosync} to rotation plans
- Fix verbose/debug logic for cluster_*, examples, and site.pp
- High timestamps date-rfc3339 as default
- Weekly rotate & keep rotated logs for 4 weeks at master node as default (was daily, keep 7)