Make the OSX 10.6+ release x86_64 only.

We have no need for the 10.6+ bundle to be 32 and 64bit. For older 32bit
machines they should be using the 10.4+ 32bit release.

Utilities/Release/dashmacmini5_release.cmake

@@ -14,7 +14,7 @@ OPENSSL_CRYPTO_LIBRARY:FILEPATH=/Users/kitware/openssl-1.0.1g-install/lib/libcry
 OPENSSL_INCLUDE_DIR:PATH=/Users/kitware/openssl-1.0.1g-install/include
 OPENSSL_SSL_LIBRARY:FILEPATH=/Users/kitware/openssl-1.0.1g-install/lib/libssl.a
 CMAKE_BUILD_TYPE:STRING=Release
-CMAKE_OSX_ARCHITECTURES:STRING=x86_64;i386
+CMAKE_OSX_ARCHITECTURES:STRING=x86_64
 CMAKE_OSX_DEPLOYMENT_TARGET:STRING=10.5
 CMAKE_SKIP_BOOTSTRAP_TEST:STRING=TRUE
 CPACK_SYSTEM_NAME:STRING=Darwin64-universal