Description of problem:
Clicking on the leave button doesn't work on nodes page.
Steps to Reproduce:
1. Create 2 node cluster
2. Try to make one node leave cluster by clicking on Leave button
An unknown command "Leave" was given for nodes "ask-03.lab.msp.redhat.com"
Node would leave cluster
Red Hat Enterprise Linux 6.0 is now available and should resolve
the problem described in this bug report. This report is therefore being closed
with a resolution of CURRENTRELEASE. You may reopen this bug report if the
solution does not work for you.