sonatype/nexus — pull request #435 by cstamas (2012-06-07 15:53:17+00:00)
Title: NXCM-4024: Preparations and implementation

These commits are:

* detaching nexus-maven-plugins parent from Nexus parent (it made no sense)
* cleaning up POM of nexus-maven-plugin
* bumping the already present maven-core dependency from 2.2.1 to 3.0.4, it went with slight changes in UT, no code changes in plugin. This step was needed to make possible to implement Lifecycle Participant.
* Verified plugin still works with mvn2.2.1 and mvn3.0.4
* Implemented lifecycle participant, now all you need is to add it to POM and have extensions=true