Send crm_mon stderr to /dev/null while waiting for cluster bringup

Signed-off-by: Tim Serong <tserong@suse.com>
Minor punctuation fixes for man pages

Signed-off-by: Tim Serong <tserong@suse.com>
Trigger corosync config reload after node join/remove

Signed-off-by: Tim Serong <tserong@suse.com>