Code review comment for lp:~opnfv-team/charms/trusty/neutron-api-odl/packagefix

This is a simple charm helpers sync. To fix liberty version string handling. As now neutron-common is at version 7.0.1-0ubuntu1~cloud0

      'neutron-common': OrderedDict([
- ('7.0.0', 'liberty'),
+ ('7.0', 'liberty'),
+ ('8.0', 'mitaka'),

Approved