gitian: upgrade to openssl-1.0.1h for CVE-2014-0224

This updates the gitian build files to use OpenSSL version 1.0.1h because of CVE-2014-0224 (https://www.openssl.org/news/secadv_20140605.txt).

I also updated the revision number of the `qt-win32` package as it has a dependency on the `bitcoin08-deps-win32` package which contains the OpenSSL build. I'm not sure whether this is the right way to do it, though.