Fix platform.h header to define BOOST_HAS_GCC_TR1 to avoid boost's fusion tuple and match Sirikata's setup.
Fix platform.h header to define BOOST_HAS_GCC_TR1 to avoid boost's fusion tuple and match Sirikata's setup.

xiaozhou/libcassandra,xiaozhou/libcassandra,xiaozhou/libcassandra,xiaozhou/libcassandra