default entityID

[Tom Scavo]

I found this line in build.xml:

<input message="SAML EntityID:" addproperty="entityid"
defaultvalue="https://${idp.host.name}/idp/shibboleth" />

That one line has cost countless numbers of deployers (and me) great
misunderstanding and pain. That line should simply be:

<input message="SAML EntityID:" addproperty="entityid"
defaultvalue="https://${DOMAIN}/idp" />

That is a much better entityID since it only depends on the domain,
which rarely changes. Everything else is subject to change, but as you
know, an entityID should NEVER change.

Tom