general 'make check' tests, to test without a message broker running.
Also add --enable/--disable options to configure to optionally build
the MQ implementations.

        a null pointer (not afterward)

           add the statistic data_truncated for this case
           remove the memory barriers

           thread after copying from VSM, and a write barrier in
           the worker thread before sending the data

           sending data

           the Varnish log to a record

            static storage types

* 80 char line limit also goes for Makefile.am (and any other source)
* removed a stray tab from Makefile.am (could interfere with make)

* consistent brace style (K&R for if, while, for, do etc.)
* I'm prejudiced against cuddled elses %^)

* source file line width always <= 80 chars
* continuation lines only where necessary

           non-recoverable send failures

           unrecoverable send errors

[trackrdrd] test_util has now functions for checking stdout and stderr. Already used in test_config.c

                     log level is DEBUG

(because the ActiveMQ implementation was crashing when it tried to look
up the number itself)

the messaging plugin as well

timeouts to the name used by Apache Kafka