[[ LibOpenSSL 1.0.1e ]] Make sure we copy revsecurity into the _build folder for Android.
[[ LibOpenSSL 1.0.1e ]] Tweaked iOS build-extensio-ios.h so that externals link correctly again.
[[ LibOpenSSL 1.0.1e ]] Tweaked how Mac weakly linked modules are loaded so that the path relative to the current exe is tried if module cannot be found.