Bump python-cinderclient version to 1.1.0.

This update is required for supporting cinder volume pagination in
horizon.

Change-Id: I0d9f4a7c64777496279a281ffde8691227f919c7
Bump websockify to >=0.6.0 which fixes bug causing zombie processes

Websockify 0.6.0 has been released for more than half an year, and
it fixes bug causing zombie processes on certain systems when using
multiprocessing.

Ref: https://github.com/kanaka/websockify/issues/95

Closes-Bug: #1048703

Change-Id: I5c13ee3504bd1542f936c34082d4bbdc498315ce
Merge "Bump websockify to >=0.6.0 which fixes bug causing zombie processes"
Merge "Bump python-cinderclient version to 1.1.0."