* Added ProxiedDavServer component (used by plexus-webdav) to make /repository/ access proxied.
* Upgraded plexus, used [MRM-264] as baseline, but many more changes were needed.
* Plexus upgrade broken JSTL's <c:forTokens> taglib everywhere, corrected by moving away from that taglib.
* Created GroupIdLink tag following webwork guidelines for UI component.
* Fixed AuditLog.
git-svn-id: https://svn.apache.org/repos/asf/maven/archiva/trunk@497563 13f79535-47bb-0310-9956-ffa450edef68