NEXUS-7586: No DEBUG output and logging cleanup.
License added
NEXUS-7586: Make waiting messages more informative
Added missing param
Das proper style
NEXUS-7586: Commented the use of println
NEXUS-7586: Extended ITs for all major mvn versions
NEXUS-7586: Fix conflicting versions and add cleanup
Fix IT, added cleanup

To allow multiple invocations
Merge pull request #76 from sonatype/NEXUS-7586-logging-cleanup

NEXUS-7586: No DEBUG output and logging cleanup.