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_