Update ExternalLibraries/OpenSSL to version openssl-1.0.0b

[Erik Schnetter]

... because this version has several security problems corrected.

Keyword:

[Frank Löffler]

1.0.0c is out

[Frank Löffler]

The included patch (the one in the thorn) fails to apply for version 1.0.0c. I could see how to apply it by hand, but I couldn't test it, neither do I understand why that patch is necessary, nor could I find anything about that in the log.

Erik: Since this seems to be a mac-only problem, and you commited this patch: why was this patch necessary? (removing some -arch flags, which at least at first sight don't seem to be wrong)

[Erik Schnetter]

The -arch flag is not supported by standard gcc, only by Apple's own version of gcc. This leads to a build failure.