* if trying to connect to a XEN server which is not the pool master,   the module will now switch the connection to the pool master   (pool master info is returned as part of the exception raised by the   XENapi when trying to get a session from a pool member)
* if trying to connect to a XEN server which is not the pool master,
  the module will now switch the connection to the pool master
  (pool master info is returned as part of the exception raised by the
  XENapi when trying to get a session from a pool member)

* handle a case wares a VM doesn't have a base image attribute
  this is the case with default system templates and imported VMs

saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt