over indexes if the result set is already empty.

- In ``skel/etc/zope.conf.ing``, replaced commented-out
  ``read-only-database`` option, which is deprecated, with pointers to the
   appropos sections of ZODB's ``component.xml``.

- Updated the description of the ``zserver-read-only-mode`` directive to
  indicate its correct semantics (suppressing log / pid / lock files).
  
- Added deprecation to the ``read-only-database`` option, which has had no
  effect since Zope 2.6.

- removed svn:external for 'bootstrap dir

  the user-permission report

- whitespace cleanup

Reverted r90443 and r90454. We keep the shopping cart tests working by including a copy of Examples.zexp.

empty object managers were evaluating to boolean false since Hanno fully implemented IContainer, because boolean checks fall through to __len__ if __nonzero__ is not implemented.  always evaluating to true is the backwards-compatible approach

Removed the `getPackages` wrapper from setup.py which would force all versions to an exact requirement. This made it impossible to require newer versions of the dependencies. This kind of KGS information needs to be expressed in a different way.

So, replaced it with zope-dev@zope.org

- Remove sentence about other platforms (it's missing!)

- fix path to INSTALL.rst

for the PyPI upload 

Added an optional explicit argument to the mkzopeinstance script, which allows to specify the Python interpreter to use for the instance. Updated the installation docs with this and note how to create an instance directly from the Zope SVN checkout