Revisit doc on running JBWS testsuite in IDE

At the time of JBossWS 3, we put some efforts on the IDE integration and the page at [1] was produced. That page basically does not apply anymore; we need to provide proper directions on how to run the jbossws testsuite in the IDE nowadays (with the eclipse / maven plugins we have today and the current project structure).
The last part of the old webpage is about the project generation, which is to be replaced by the jbossws maven archetype, so that's not part of the task here.

[1] https://community.jboss.org/wiki/JBossWS-SetupyourIDE