* stable-2.8
  Improve RAPI detection of the watcher
  Add patching QA configuration files on buildbots
  Enable a timeout for instance shutdown
  Allow KVM commands to have a timeout
  Allow xen commands to have a timeout
  Fix wrong docstring

Conflicts:
	lib/hypervisor/hv_xen.py
	test/py/ganeti.hypervisor.hv_xen_unittest.py

Resolution:
  The conflicts were due to a new mandatory parameter hvparams being added
  (in 2.9) to the same functions that received the optional timeout parameter
  (in 2.8). They were resolved by keeping the hvparams in its place, and
  enqueuing the timeout parameter after it.

Signed-off-by: Michele Tartara <mtartara@google.com>
Reviewed-by: Klaus Aehlig <aehlig@google.com>