The input-forward-after-restart-failure test must run on a single node,
but it's nice to be able to run the others in pipe_verify_exceptions on
multi-node clusters. This commit splits them into different tests to
make that possible.
we may be able to do something smarter for
pipe_verify_exceptions:verify_queue_limit, like a coordinating process
as used in pipe_verify_handoff, but do the simple thing for now
This will allow us to remove the fragile setup/teardown logic in the
riak_pipe module.
pipe_verify_examples <- half of riak_pipe:basic_test_
pipe_verify_basics <- other half of riak_pipe:basic_test_
pipe_verify_exceptions <- riak_pipe:exception_test_
pipe_verify_handof <- riak_pipe:limits_test_
pipe_verify_sink_types <- riak_pipe:sink_type_test_