gcc build fix

git-svn-id: http://libtorrent.googlecode.com/svn@10041 f43f7eb3-cfe1-5f9d-1b5f-e45aa6702bda
more boost::chrome related fixes

git-svn-id: http://libtorrent.googlecode.com/svn@10042 f43f7eb3-cfe1-5f9d-1b5f-e45aa6702bda
fix bugs in convert_to/from_native() on windows

git-svn-id: http://libtorrent.googlecode.com/svn@10043 f43f7eb3-cfe1-5f9d-1b5f-e45aa6702bda
back-port windows fix from trunk

git-svn-id: http://libtorrent.googlecode.com/svn@10044 f43f7eb3-cfe1-5f9d-1b5f-e45aa6702bda