Experiments with command-line and web flow adaptor

[Tom Zeller]

> <evaluate expression="StaticResolverBean.doExecute(conversationScope['org.opensaml.messaging.profile.ProfileRequestContext'])"

> I would argue that's much more natural and even axiomatic for a flow,

I agree, with the qualification "for people who are familiar with web
flow", which I would like to remove the need for deployers to know.

Of course, using Spring EL syntax in the CAS flows is fine with me,
since a boundary can be drawn where needed.