libc++ clang cryptopp

This ticket

http://sourceforge.net/apps/trac/cryptopp/ticket/17

Which was filed by Fraser Hutchison in our team fixes a bug in cryptopp that will allow cryptopp to be compiled and successfully run it’s tests when compiled with stdlib=libc++ for anyone who requires linking crryptopp to any of their projects. There are a couple of switches to quiet the compilations, but they are obvious if we want them.

Cheers
David