Add endpoint_type parameter to MetaInterfaceDriver

Previously MetaInterfaceDriver communicates with neutron-server
via 'publicURL' because it uses python-neutronclient without
endpoint_type and 'publicURL' is the default.
It causes error when a user intends to use internal or admin URL
for communication between MetaInterfaceDriver and neutron-server.

Change-Id: Id321d5a16a08a4bda618f98bb1eb7cb1b0b9eb08
Closes-bug: #1354285
NSX plugin: set VNIC_TYPE port binding attribute

A recent change has made this attribute required for nova
integration.
This patch adds this attribute to responses generated by the NSX
plugin, and also ensures relevant unit tests are executed for the
vmware NSX plugin.

Change-Id: Ieebab01b406909f66a40cc683763292a9ef6f218
Closes-Bug: #1370112
Set dsvm-functional job to use system packages

The functional job was breaking due to the interaction between
devstack installing neutron system-wide in editable mode (pip install
-e) and tox packaging in the same path.  Installing in editable
mode meant that neutron.egg-info/PKG_INFO could be updated (in this
case by tox) to change the installed version of the neutron package
without updating scripts that depended on the installed version
(e.g. rootwrap).  This fix is to set the dsvm-functional env to
use system packages and avoid having tox update PKG_INFO.

Change-Id: Icc38cacd69bc5843ccfcc60237a7102df6d8597f
Closes-bug: #1370347
Update URL of Ryu official site in ofagent README files

Change-Id: I1e9bdc3dffb8be705c0fcaf88bd914d27e10936d
Merge "Add endpoint_type parameter to MetaInterfaceDriver"
Merge "NSX plugin: set VNIC_TYPE port binding attribute"
Merge "Update URL of Ryu official site in ofagent README files"