Shibboleth IDP 2.3.8 build error

[Tom Zeller]

> If we want to support builds of older tags and/or source archives, and
> have "everything just work", including the Eclipse .settings and
> .checkstyle: the simplest solution would be to just put back up a
> read-only copy of the old java-parent-project repo.  I saved off an svn
> dump before the restructure, so it would be easy to do.

Simple and easy, nice.

Maybe update a readme and/or the wiki source access doc, if this is
the right thing to do.