Small refactor of new getIndexObjects method. Tightened security (since wrapped indexes are more open to untrusted code) and generalized the other assertions for ZCat.

  - Removed unnecessary tuple cast

  - OIBTree.keys() is faster than IOBTree.values()

ZCTextIndex is now associated by path to its lexicon. After replacing a lexicon used by an index, clear the index to make it use the new lexicon.

As the 'if 1:' block for diff preservation was heavily tabbed anyway, I
removed an indent level and the 'if 1:' statement.

Added newline_to_br to manage_tabs_message insertion to allow newlines without passing html over the request, which no longer works due to tainting

small whitespace cleanup (I know, why bother ;^)

  - Catalog.getIndex returns an acquisition wrapped index, use instead of
    Catalog.indexes[...]
  - ZCatalog.getIndexObjects returns the list of index obs also acquisition
    wrapped. Its use is preferred over the previous index_objects method.

Changed Catalog code to utilize getIndex. This is mostly a neutral change except for in clear() which did not used to wrap before calling the index.
Help docs and interfaces updated to reflect the change.

version management screens.

quoted and lack of unquote functions).

receiving them.  This is required to comply with the spec for
cookies, which requires escaping of at least : and blank spaces.

I changed the setCookie routine in both BaseResponse and HTTPResponse
to keep them indentical.  Since they *are* identical, one would think
that one of them could be eliminated.

match those docs.

and fix one place that url_unquote and url_unquote_plus need to
be added (I think) that chrism missed.

well as made these functions available in PythonScripts via
the 'standard' module.

when using FastCGI

- cleaned up comment to avoid long line