Add missing argument to novncproxy websockify call
Add missing argument to novncproxy websockify call

Current websockify constructor in nova-novncproxy requires
target_path to be explicitely set. This commit adds the missing
parameter. Fixes bug 1031998.

Change-Id: I05e346b5df5bc1501b55ff606fc4cefdda889d60

n0ano/ganttclient