glance & keystone fighting over openstack client

[Matt Fischer]

including glance and keystone on a single node leads to a duplicate resource issue. This is on the liberty branch.

root@openstack-puppet-test:~# cat q.pp
include ::glance
include ::keystone

root@openstack-puppet-test:~# puppet apply q.pp
Error: Duplicate declaration: Package[python-openstackclient] is already declared; cannot redeclare at /etc/puppet/modules/openstacklib/manifests/openstackclient.pp:14 on node openstack-puppet-test.openstacklocal
Error: Duplicate declaration: Package[python-openstackclient] is already declared; cannot redeclare at /etc/puppet/modules/openstacklib/manifests/openstackclient.pp:14 on node openstack-puppet-test.openstacklocal