Adapting proxo 4.5 to the latest OpenSSL DLLs

[amy]

What I've done so far

- Compatible with OpenSSL 1.0.1j (1.0.1k just came out, I think it'd be compatible too)
- Configurable cipher list
- SNI extension
- SubjectAltName extension
- Wildcard certificate support
- Fixed multithreading crash/hang
- Fixed crash on connection failure

Yesterday fixed memory leak in the certificate name checking... and I still have 7 bytes left there.

I'm just fixing things when I have the time, hence the sparse updates, and mostly using in the meantime to test its stability.

It starts up using around 8.5MB and now it's at 12.5MB; if it doesn't grow much more than that (or crash) after a week of use then I'll probably release it then. The leak I fixed yesterday caused it to grow to over 45MB after a few days of use!