Add support for a basic Query-By-Example (QBE) interface in the film …

…list.

Use pyrseas.lib.dbconn instead of dblib.py.

  Also remove cherrypy, flask and wsgi directories as no longer maintained.

Add error feedback section to film/delete.html template.

Use xmin to provide optimistic concurrency control.

Replace hard-coded database name in WebFilmTestCase.setUp.

Add unittest cases to test the business logic module.

Third version of Werkzeug interface, with more RESTful URLs

Second version of a Werkzeug database user interface, using Maps/Rules.

First version of a Werkzeug database user interface, without Maps/Rules.

Refactor the command line interface, using modules from CherryPy vers…

…ion.