Upgrade maven from 3.2.5 to 3.3.9

kie-ci currently depends on Maven 3.2.5 which is quite old. We should try to upgrade to the latest version, 3.3.9.

This will not be as easy as bumping the versions. The kie-ci maven integration is using manual DI wiring for OSGi (since the default Guice wiring was not working there). It would be worth trying if the Guice now works in OSGi, so that would could avoid the manual wiring which makes the maven upgrades very painful.