update to use openstack-common 0.4.0

Change-Id: Id080bf2e3f1b3171d87910c2d83c242b76a24733
Replace ceilometer reference from openstack-compute to openstack-metering

Fix errors due to removed reference of openstack-compute ceilometer.
* add openstack-metering to metadata.rb
* add openstack-metering to Berksfile
* replace attr name from compute to metering

Change-Id: I2047fe226840d136e99bcc49970043476ffb2dbd