ctdb-tests: Add tests for "ctdb reloadips" and "ctdb recover"

ctdb-tests: Add tests for "ctdb reloadips" and "ctdb recover"

Although much of the test infrastructure in recent commits is actually
targeted for "reloadnodes", it is worthwhile adding some tests for
"reloadips" and "recover".  This allows most of the test
infrastructure to be tried out against known good code.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Autobuild-User(master): Amitay Isaacs <amitay@samba.org>
Autobuild-Date(master): Mon Mar 16 09:18:55 CET 2015 on sn-devel-104