correct error which provoked failure with GCC

svn path=/branches/serialization_next_release/boost/tools/; revision=38921
remove commented out code

svn path=/branches/serialization_next_release/boost/tools/; revision=38922
remove const on map argument

svn path=/branches/serialization_next_release/boost/tools/; revision=39483
Removed file/folder

svn path=/branches/serialization_next_release/boost/boost-build.jam; revision=48381