bug 443526: don't package provisional data engine api javadoc
fix up a few stragglers from bad merge 0418057
raise the ceiling on the one plugin that claims it won't accept 4.5
bug 451423: pick new axis from orbit to go with 4.5.0 bundles
This whole nonsense with a pack200 shell script was a workaround for a
java 5 bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=154069