3.0.3

Patch release 3.0.3 of Webware for Python 3.

Please see the list of changes for an overview of all the new things in version 3.

Notable changes in this patch release:

• Fix for incompatible FieldStorage class in recent Python versions (261e21a)
• Do not use secure cookie in development (f9779d7)
• Register signal handlers in development mode (b4d4c03)
• Update waitress to 2.0 and add log-level option (df2fc74)