exception: specify expected parameter in NoSelectableException Enforce expected parameters, reformat exception message in class itself and change some log messages in calling code.

+
−# copyright %(year)s %(author)s, all rights reserved.
+
−# contact %(author-web-site)s -- mailto:%(author-email)s
+
−#
+
−%(long-license)s
+
−"""%(distname)s entity's classes"""