Add the HandlerFactory interface to avoid the ClassCastException when proxying factories (Issue Felix-552)
As a consequence, the archi command now target this kind of factory.
Some tests have been updated to reflect this change.

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@656044 13f79535-47bb-0310-9956-ffa450edef68
21 files changed