bitkeeper revision 1.1713.3.5 (42b2a4e2r6SNlC_nq2hAkXEQjEFAmA)

bitkeeper revision 1.1713.3.5 (42b2a4e2r6SNlC_nq2hAkXEQjEFAmA)

Many files:
  - watch now takes a token, returned when reading watch
  - More tests
  - Fix domain shared page communication (flush output)
  - Add "home" path for domains
  - More permissions checks in various functions
  - Simplify watch acknowledgement code and fix occasional bug
xs_watch_stress.c, 12readonly.sh, 11domain-watch.sh, 10domain-homedir.sh:
  new file
xs_stress.c, xs_lib.h, xs_lib.c:
  Cleanup whitespace.
ignore:
  Add tools/xenstore/xs_watch_stress
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>