WidgetServer

This release changes the render interfaces of
tables, lists, and trees for simpler handling of
(transformed) string values. Some bugs were fixed
in model binding, and some new parameters in
web.xml were added for automatic handling of
session-count-overlow-error,
invalid-client-type-error, and
no-cookies-eanbled-error. Client detection was
enhanced to use regexp to evaluate the user-agent
field. Some rework has been done in the deployment
template to explain the new parameter settings.