Zope.app.catalog

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- Remove testing dependencies from install_requires.

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- Resolve ``ZopeSecurityPolicy`` deprecation warning.

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- Updated some meta-data.

- Move ``ftests.py`` to ``tests.py``.

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- removed some deprecations

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- bugfix: passing the context to getAllUtilitiesRegisteredFor in all
eventhandlers because no catalog was found which was located in a
sub site and for example the ObjectModifiesEvent get fired from somewhere
in the root.

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- Added marker interfaces to prevent automatic indexing (see: ``event.txt``)