In the current doc, the command examples are like
"os server create" but the acutal command should
be started with "openstack" instead of "os", it
is misleading to first time users.
Change-Id: I80c96f0938cec382f2f714a500138bd5a2c81aa0
Support --long option and more columns in output of hypervisor
list command, including 'Hypervisor Type', 'Host IP', 'State',
and 'vCPU Used', 'vCPUs', 'Memory MB Used', 'Memory MB' with
--long option.
Change-Id: I0c790c7835309dded03e230cf497168e19404537
Closes-Bug: #1637074
