Loadavg collector: use platform independent os.getloadavg() instead of /proc/loadavg
Collector status for ceph server using command 'ceph -s'
Merge pull request #492 from soxofaan/feature-os-getloadavg

Loadavg collector: use platform independent os.getloadavg() instead of /proc/loadavg
Merge pull request #502 from nvhbk16k53/master

Collector status for ceph server using command 'ceph -s'