And maven-eclipse-plugin to latest plexus too

And at this point, I think all of the maven plugins refer to the same version
of plexus-utils, plexus-io and plexus-archiver. Time to move them
to dependencyManagement in parent ?

git-svn-id: https://svn.apache.org/repos/asf/maven/plugins/trunk@1516522 13f79535-47bb-0310-9956-ffa450edef68