Terracotta supports subtype expressions

Terracotta added (or re-added?) a feature that lets you define classes to be instrumented including all their sub types. This makes configuring Wicket applications with Terracotta a lot easier, especially now that we introduced a tagging interface IClusterable for this purpose.

Many thanks to Eugene Kuleshov, who implemented this feature and tested it with Wicket. After some last fixes from Matej, nearly all wicket-examples run without problems.

[update]
This post was getting out of date, particularly the configuration bit, which is now much easier. In order not to confuse people, I thought it would be better to remove it.