[Calypso] Handle resources with slashes in the name

[Petter Reinholdtsen]

[Guido Günther]
> Nitpick: I would rather name the ics files like the test cases in the
> future. I went ahead an pushed this. Thanks.

I went with this naming scheme because I plan to add examples from other
clients too, expect to write tests combining different files in the
future.  Because of this, I decided to not name files after the test.

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Happy hacking
Petter Reinholdtsen