[UIMA-2966] [UIMA-3501] fixup all Jars to avoid duplicate entries in the maven metadata (which causes pack200 to fail).  Force a clean of the eclipse-update-site subsite, because mvn install (w/o clean) messes up the metadata / publishing in various strange ways.


git-svn-id: https://svn.apache.org/repos/asf/uima/build/trunk@1551263 13f79535-47bb-0310-9956-ffa450edef68