* Creates a unified way to access vnc consoles for xenserver and libvirt
* Now supports both java and websocket clients
* Removes nova-vncproxy - a replacement version of this (nova-novncproxy) can be found as described in vncconsole.rst
* Adds nova-xvpvncproxy, which supports a java vnc client
* Adds api extension to access java and novnc access_urls
* Fixes proxy server to close/shutdown sockets more cleanly
* Address style feedback
* Use new-style extension format
* Fix setup.py
* utils.gen_uuid must be wrapped like str(utils.gen_uuid()) or it can't be serialized
Change-Id: I5e42e2f160e8e3476269bd64b0e8aa77e66c918c
6bcc351b2a