[windup-dev] Some cleanup

Hi, I've deleted ~/.m2/org/jboss/windup, and then the build is a bit tricky. Doesn't build at once - forge complains about resolving the version of a test dependency. I had to set a version. Then I need to build graph-parent, which complains about windup-parent. After building these extra, everything builds. This happens with 46ba7f6d5f. More importantly, I've hit https://issues.jboss.org/browse/WINDUP-75 Can't reproduce, so not sure whether it's on our side or Titan. Ondra