Sync Gemfile
Sync Gemfile

Sync Gemfile with other OpenStack modules.

Some lint checks are commented out pending fixes.

Change-Id: I0f3dd9bf7b5acb5b0ea4a57b129c6ecf2d7e0f1a

openstack/puppet-monasca,openstack/puppet-monasca,openstack/puppet-monasca,openstack/puppet-monasca,openstack/puppet-monasca