Shorten PKI token logging

Log only the first 12 characters of auth-token for the Swift
API, since PKI based auth-tokens from keystone can huge (>> 2K).

Also tidy up a comment.

Change-Id: Ib784e8ecdcb7e371fe03458c7fd82b4460fa82b9
Signed-off-by: Peter Portante <peter.portante@redhat.com>
Use the swift logging adapter for txn IDs

Change-Id: I2b2308eb9606279cffc1965fc3b86e9597d63e87
Signed-off-by: Peter Portante <peter.portante@redhat.com>
Merge "Shorten PKI token logging"
Merge "Use the swift logging adapter for txn IDs"
xenapi: enable user interaction with stack.sh

In XenServer, devstack runs inside a virtual machine. This makes it hard
for the user to interact with stack.sh should a parameter be missing.
This change will create an upstart job (devstack) that runs
stack.sh with console enabled so user can interact with it by running
vncviewer or using XenCenter.

Logging the output is also disabled, stamp files are used instead to
detect the script run status in case install_os_domU.sh is used.

As run.sh.log is removed, standard devstack logging should be used.

The change also removes the environment settings from run.sh, as they
are not needed, they should be specified in localrc. This way user
cannot get different experiences by using unstack.sh/stack.sh or run.sh

Also a proper unstack.sh is called instead of killing screen in run.sh

Change-Id: I7eb12bd74746cc7a1db3aa9fd68ece645a50001d
xenapi: display IP and DevStack result on console

The devstack setup service can update /etc/issue, displaying the status
of the installation and the VM's management IP. With this change, after
the devstack service finsihed, the login prompt will look like this:

OpenStack VM - Installed by DevStack
  Management IP:   10.219.3.108
  Devstack run:    SUCCEEDED

DevStackOSDomU login:

This helps people to log in to their system.

Change-Id: Idd6bbd5faf9ced5618cd3e95191bfc3b89473fa2