* lisp/filenotify.el (file-notify-callback): Do not send a
`stopped' event in case of backup by renaming. (Bug#22557)
* test/automated/Makefile.in: Use $(SELECTOR_EXPENSIVE) for
all targets but check and check-maybe.
* test/automated/file-notify-tests.el
(file-notify--test-read-event-timeout): New defconst.
(file-notify--deftest-remote, file-notify--wait-for-events)
(file-notify-test02-events)
(file-notify-test04-file-validity)
(file-notify-test06-many-events): Use it.
(file-notify--test-cleanup): Make it more robust. Delete also
backup file.
(file-notify-test07-backup): New test.