Combine debug and verbose commandline options

Most of the openstack clients (for example nova) when --debug is specified it
shows the api calls the client is making. However, when debug is passed into
the neutronclient it shows exceptions that have occurred inside the
neutronclient. This patch combines verbose and debug to do the samething.

Change-Id: I6f2e0b17ffbe8fbfa77e26222dae32f5ab1e8866
Closes-bug: #1260489
Rename Nicira NVP to VMware NSX in neutronclient

Use new naming scheme to reflect rebranding.

Partial-implements blueprint nicira-plugin-renaming

Change-Id: I694fbda1c228e92a0b910358523787fa742d9ab2
Fixed get_auth_info() for pre-authenticated clients

When a client is instantiated with pre-defined authorization token,
no authentication is done, so no auth_[tenant|user]_id keys are set
for HTTPClient. As a result, Client.get_auth_info() fails with KeyError.

Fixed the issue by setting those keys on HTTPClient initialization.

Change-Id: Ifc9d6b128286b635346a7bc026fcc55dbd002050
Closes-Bug: 1277120
Merge "Rename Nicira NVP to VMware NSX in neutronclient"
Merge "Fixed get_auth_info() for pre-authenticated clients"