logging: Remove logging.conf, use log_dir only
logging: Log to file, OpenStack to local3, ignore

All OpenStack services now log to /var/log/{service}. Log files in these
directories are read by rsyslog and forwarded to Logstash, if forwarding
is enabled. We also ignore local3 writing into /var/log/syslog due to
duplication.
Merge pull request #525 from blueboxgroup/logging-refactor

logging: Remove logging.conf, use log_dir only
logging: Log to file, OpenStack to local3, ignore

All OpenStack services now log to /var/log/{service}. Log files in these
directories are read by rsyslog and forwarded to Logstash, if forwarding
is enabled. We also ignore local3 writing into /var/log/syslog due to
duplication.
tls: crt in local folder, auto trusted

Add the OpenStack services crt and the rsyslog logging cert into the
local directory to be picked up.
Any .crt files in /usr/local/share/ca-certificates are automatically
trusted by update-ca-certificates when run.

Based on man page found at:
http://manpages.ubuntu.com/manpages/precise/man8/update-ca-certificates.8.html
tls: log forward use local certs