xenapi: add username to vncviewer command

Devstack prints out an instruction, how to look at the virtual machine's
console. The command did not include the username, so if the user had a
config file to use a different username for that network, the command
failed.

Change-Id: I5dd49169c45e26e8d2bb3d5920a1b7fa584be50f
xenapi: Set VM memory before starting it

If someone was re-using an existing template, for a memory change, he
needed to re-install the vm. This change sets the osdomu mem before
starting it, so it doesn't matter how much memory did the VM had
according to the template. It also removes the memory manipulation bits
from install-os-vpx.sh.

Change-Id: Iad85f573b90c23140012c20c552a17277d9c97a0
Cinder needs iscsiadm available

This patch adds the binary packages that contains
the iscsiadm utility for cinder.   Cinder
uses the iscsiadm utility for various actions
and it should be there for devstack users.

Fixes bug #1219032

Change-Id: I8e1c6e2e5d4bfade50aba9259b6da3957d6d622d
Merge "xenapi: add username to vncviewer command"
Merge "Cinder needs iscsiadm available"
Merge "xenapi: Set VM memory before starting it"