[Exist-development] repo manager works again

[James F. <jam...@ex...>]

a few caveats;

* when in doubt restart eXist ... we still have the limitation of
having to restart if you add or remove a package, which is boring but
hopefully we will sort out soon

* I will be working with Florent over a few changes to package format
(currently we define a repo.xml file which will change to exist.xml
inside the .xar format) things are still volatile with respect to
package format

thx to Florent Georges for pushing things forward on this.

,J