#311 nant-task, easter egg w.r.t. datatype references

[Rutger Dijkstra]

Not realy a bug since the documentation says nothing
about how the nant-task handles datatype reference.

The nant task will always pass datatype references
through to the executed project, i.e. irrespective
of the value of the inheritall-attribute.

[Gert Driesen]

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This is now fixed in cvs.

I've actually introduced a breaking-change as a result of your
bug report:

References will no longer be copied by default. This can be
controlled using a newly introduced "inheritrefs" attribute.