Create a development branch for the hash library.

svn path=/branches/hash/boost/enable_shared_from_this.hpp; revision=38869
Initialise svnmerge for the hash branch.

svn path=/branches/hash/boost/shared_array.hpp; revision=39015
Merge from trunk.

svn path=/branches/hash/boost/detail/sp_counted_base_cw_x86.hpp; revision=39016
Merge from trunk.

svn path=/branches/hash/boost/shared_ptr.hpp; revision=39287
Merge with the offending files removed.

svn path=/branches/hash/boost/detail/sp_counted_base.hpp; revision=39995
Another merge.

svn path=/branches/hash/boost/pointer_cast.hpp; revision=40001
Merge from trunk.

svn path=/branches/hash/boost/get_pointer.hpp; revision=40260
Merge from trunk. Including floating point hash tweaks.

svn path=/branches/hash/boost/smart_ptr.hpp; revision=40266