Ensure NSXv driver can verify certificates

[OpenStack Infra]

https://review.openstack.org/217841

Dear documentation bug triager. This bug was created here because we did not know how to map the project name "openstack/vmware-nsx" to a launchpad project name. This indicates that the notify_impact config needs tweaks. You can ask the OpenStack infra team (#openstack-infra on freenode) for help if you need to.

commit 8b6d8f798d818fa476cf8c8aeee3f3d31a2b52fc
Author: Eric Brown <email address hidden>
Date: Mon Aug 24 15:10:29 2015 -0700

    Ensure NSXv driver can verify certificates

    The NSXv driver was missing code to do certificate verification.
    In fact, it was intentional turned off. This patch adds the
    capability to turn it on.

    DocImpact:
    Two new options for the NSXv driver: ca_file and insecure.

    Closes-Bug: #1488265

    Conflicts:
     vmware_nsx/etc/nsx.ini
     vmware_nsx/neutron/plugins/vmware/vshield/common/VcnsApiClient.py

    Change-Id: I12ffa2f5e80d4dd357e907631d2bcc76c13a0797