BZ #1097826 - SElinux - rsync /etc/keystone/ssl

https://bugzilla.redhat.com/show_bug.cgi?id=1097826

Add setboolean and -X to preserver context.
Merge pull request #227 from jguiditta/selinux_rsync_fix

BZ #1097826 - SElinux - rsync /etc/keystone/ssl