Description of problem:
It would be great (as a feature request), to allow the purge button to also access the recipe.xml and to do the typical purge action of deleting everything, but to also have a pre/post purge ant target that it can run.

For example, if my bundle has a JBoss server, I would want to shutdown the server in the pre-purge (via my recipe), then have the purge just delete all the files.. and finally maybe remove a symbolic link in the post-purge.

This would allow for a lot cleaner systems along with a lot more flexibility and hopefully without too much hassle given that the deploy already has this built in.

Version-Release number of selected component (if applicable):
3.0 GA -- I can help test if it goes into beta

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