Zope.app.catalog

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- Make TextIndex addform use default values as specified in
zope.app.catalog.text.ITextIndex interface. Also, change
"searchableText" to "getSearchableText" there, as it's the
right value.

- Add Keyword (case-insensitive and case-sensitive) catalog
indices. It's now possible to use them, because ones in
zope.index now implement IIndexSearch interface.

- Add support for sorting, reversing and limiting result set
in the ``searchResults`` method, using new IIndexSort interface
features of zope.index.

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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``.

--------------------

- 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.