HA support for ceph-radosgw
chef recipe support for HA

include radosgw_ha recipe; get the admin/public address for Ha case

use the current port (HA/non-HA)
added pacemaker primitive for radosgw service

fixed port for statusurl

PacemakerServiceObject required for pacemaker-related functions

support server-status URL
make sure that all nodes with radosgw role have the same other ceph roles
include common apache resource creation

distinguish between port type

save list of ports for a service

save the correct node address for HA setup
Merge pull request #74 from jsuchome/ha_support

HA support for radosgw