Propose nova-novncproxy back into nove core.
Propose nova-novncproxy back into nove core.

  * Use https://github.com/kanaka/websockify instead of wsproxy
    (which ships with noVNC)
  * Fixes bug 1001098
  * Looks for noVNC html files in /usr/share/novnc by default
  * Fix comments, and call utils.default_cfgfile()
  * use "except Exception"

Change-Id: I73dfe26fde699bb79aa1145bb1ab33f3a148bf21

n0ano/ganttclient