Set HTTP PUT Content-Length for container actions
Set HTTP PUT Content-Length for container actions

We are not passing any body for the container actions, so let's
default the content length to 0. Otherwise the pecan/wsgi waits
for a body and just hangs.

Change-Id: I9517f611d5a60791c6a03f37deeaab43d96bcc94

openstack/python-magnumclient,ramielrowe/python-magnumclient,ramielrowe/python-magnumclient