Plugin documentation

Goals available:

tools:copy-legal-filesCopy legal files for inclusion into generated jars.
tools:require-java-versionForces the build to fail if the version of Java is not compatible.
tools:require-maven-versionForces the build to fail if the version of Maven is not compatible.
tools:set-artifact-fileHelper to install a specific file (or the projects pom) as the projects artifact file.

Custom packaging will need to define a artifact handler plexus component to map desired file extention.

tools:show-dependenciesHelper to show a projects dependencies.
tools:show-propertiesHelper to show all properties.
tools:verify-legal-filesVerify (kinda) that legal files are in all attached zip-encoded artifacts.