NEXUS-6776 Eclipse/Aether migration

Depends on https://github.com/sonatype/sisu-maven-bridge/pull/7 and https://github.com/sonatype/sisu-bundle-launcher/pull/11

https://issues.sonatype.org/browse/NEXUS-6776
http://bamboo.s/browse/NX-OSSF380-1 :white_check_mark: