Big type_traits update:

Added make_signed, make_unsigned and is_complex.
Added docs for some previously undocumented traits: is_signed, is_unsigned and decay.html
Added synonyms for some traits that have changed name in the latest C++ std draft.
Re-organised docs, moved docs out of the main doc build for now (it takes too long).

This also fixes issues: http://svn.boost.org/trac/boost/ticket/492 and http://svn.boost.org/trac/boost/ticket/1008.
Try and force a date update.
OK finally got date modified set right.
Fixed is_base_of/is_base_and_derived so that you get a compiler error if you try and use them with an incomplete class type.
Fix msvc warnings.
Disable test for Intel-10.
Almost get things building with Borland.
Added workarounds for broken WCHAR_MAX.
Added tip to function_traits.qbk, rebuilt docs.
Disable PP-logic for __DECCXX compiler: WCAHR_MAX is defined but doesn't work in PP-logic on that platform.
Update Jamfiles to make PDF generation easier.
reverted 36306 for CW 8.3
Disabled intrinsic type traits testing for SGI compiler.
Disabled one is_convertible test for aCC on PA RISC.
Disabled some tests in promote_basic_test.cpp for more platforms that have broken WCHAR_MAX macros.
Added a couple of boost:: qualifiers that were present in 1.34.1 but got lost from the Trunk.
added license info in copyright notice at the footer
Added copyright.
Added license info.
Fixed license text.
Fix issue #1424.
Added warning suppression for VC-9.