paste.debug.watchthreads: Watches the key ``paste.httpserver.thread_pool`` to see how many
threads there are and report on any wedged threads.
paste.debug.wdg_validate: Middleware that tests the validity of all generated HTML using the
`WDG HTML Validator
<http://www.htmlhelp.com/tools/validator/>`_
paste.script.appinstall: Provides the two commands for preparing an application:
``prepare-app`` and ``setup-app``
paste.script.bool_optparse: A subclass of ``optparse.OptionParser`` that allows boolean long
options (like ``--verbose``) to also take arguments (like
``--verbose=true``).