Tweak logrotate configs for syslogs

We should rotate syslogs more often and compress them to ensure
that /var/log does not fill.

Change-Id: I8694edda7972f9801db8905490303e179bb6cebd
Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1063395
Signed-off-by: Ryan Barry <rbarry@redhat.com>