Clean up the pom, move all test code to src/test, make jetty start a pluto portal from a maven dependency and deploy the test app to it.

Add infrastructure for spock / geb based testing.

There is still some issues with the portlet bridge itself, something broke in the latest alphas. It looks like "require" is undefined when several portlets are on same page (tapestry page init code output multiple times)
A couple of deletions.