Update comments to reflect https://svn.boost.org/trac/boost/ticket/9595
BOOST_NO_CXX11_ALLOCATOR should be defined with libc++ in C++03 mode
Add test case for BOOST_NO_CXX11_ALLOCATOR
Merge pull request #14 from glenfe/develop

BOOST_NO_CXX11_ALLOCATOR should be defined with libc++ in C++03 mode