(It was said it no longer needs std::facet-support, and adding that
requirement causes libraries with different threading models to be
mixed up, causing link failures).
[SVN r24775]
- don't require std::facet-support and std::locale-support for DLL lib
and DLL tests, since it turns on static runtime, which is not usable
with DLLs
- set BOOST_ALL_DYN_LINK when linking DLL tests.
[SVN r23540]