Turn off debug by default, you can say -d for the testapp script anyway and like...

Turn off debug by default, you can say -d for the testapp script anyway and like this we don't get all the crap by default, but you _can_ turn it on in the tests by setting the env variable.. More useful imo :)

Also add dependency on Alien::ActiveMQ, so that you can actually get the smoke
tests run by CPANTS (once I teach that to install ActiveMQ as part of make install, at least)..

We probably need to abstract telling it where the activeMQ server is / or
getting it to start one into a test library - as I just want 'make test' to do
it all, but I guess Chris is more likely to already have a broker running, and
want the tests to point at that instance..