Enable to be built with gcc 5.1.0

[iori-yja]

As newer version of boost, addressof.hpp is copied into boost/core/ and a header that reffers it is put boost/utility/ instead of original file.

[nyh]

What worries me about this fix is that I have no idea how to check its implications. For example:

1. could it be that the new version is different in other ways from the original Boost 1.55 in more ways than just fixing the gcc 5 compilation?
2. Is it fine to modify the header file but leave the pre-compiled boost libraries in libboost_.a / libboost_.so compiled with the old header?