Use dbfit for querying derby in fitnesse tests

This change set adds the framework for testing (querying) an embedded derby database in a fitnesse test.  The Maven build for the fitnesse project has been augmented to start up a derby database before the fitnesse tests run and shutdown the databases after they complete.  There is also a new fitnesse test that uses the dbfit fixtures to query the database and make sure that it contains the expected data.  These same fixtures can be used to query a JMX data mart hosted in the derby database. 

In order to get this to work, I had to get rid of the setup and tear down test in the fitnesse suite.  Kind of lame, but using an import fixture in a setup is considered bad practice, apparently.