BOOST_NO_EXCEPTIONS support added.

[SVN r14835]
boost::throw_exception documentation added.

[SVN r16239]
-Wundef fixes.

[SVN r18788]
_MSC_VER use clarified.

[SVN r20992]
Converted to Boost Software License, Version 1.0

[SVN r24055]
fixes comeau bug

[SVN r24278]
boost exception

[SVN r43485]
fixed compile errors, removed tabs as required.

[SVN r44114]
Boost Exception documentation update

[SVN r44444]
minor documentation fixes.

[SVN r44476]
Integration of Boost Exception in boost::throw_exception().

[SVN r44954]
throw_exception() now ensures that the exception type passed to it derives publicly from std::exception.

[SVN r45041]
tabs removed, added protected inline dtors.

[SVN r45042]
Boost Exception documentation update.

[SVN r45043]
Fixes for old compilers.

[SVN r45069]
Improved compatibility with various compilers.

[SVN r45087]
Unconditionally #include <exception> for std::exception.

[SVN r45150]
Disable Boost.Exception for Borland 5.8.x as well.

[SVN r45268]
Borland compatibility for enable_error_info.hpp, Tabs removed from exception.hpp, Documentation rebound.

[SVN r45273]
documentation update, added function exception::diagnostic_information, added std::exception to_string overload, removed tabs from source files

[SVN r46697]