Two patches

[Steve Dispensa]

Here are two more patches. The first adds support for renegotiation of
resumption. I'd appreciate some review here; I tested this against the
resume.c test case, and had odd results: it worked well when --verbose was
specified, but it failed immediately when that switch was omitted. I don't
think the problem lies in the gnutls lib code, but I thought it was
suspicious. Any ideas?

Also, I found a bug in my initial implementation - I was incorrectly sending
the SCSV on all connections, not only those using SSLv3, as should have been
the case.

Let me know what you think.

 -Steve

resumption-and-scsv.patch
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