Fixed compilation problems with MinGW-w64.

[SVN r85865]
Enabled #pragma once for all compilers that support it, not only MSVC.

[SVN r85866]
Remove obsolete MSVC check from pragma guard

 git grep -h -B1 "^#\s*pragma once" | grep -v pragma | sort | uniq

is now clean.

[SVN r85952]
allocator_utilities: Remove obsolete MSVC version check.

[SVN r85955]
Add BOOST_USE_INTRIN_H support; remove #pragma intrinsic, not needed and not supported on Intel.

[SVN r85994]
Finished POSIX condition_variable, working on Windows.

[SVN r86007]
Detail: Remove obsolete MSVC version checks.

[SVN r86039]
Exception: Remove obsolete GCC version check.

[SVN r86073]
Container: Remove obsolete GCC version check.

[SVN r86109]
Boost.Sync: Added preliminary implementation of a waitable timer for fixed time point waits. Updated WinAPI functions to contain the required APIs.

[SVN r86179]
Fixed WinAPI compilation. Ported timed mutex to waitable timer. Windows time points are now aligned with FILETIME to reduce conversion overhead when used with waitable timers.

[SVN r86192]
Remove obsolete files.

[SVN r86242]
Remove BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION

Process #ifdef...#endif blocks.

[SVN r86243]
Remove BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION

Process #ifndef...#endif conditions.

[SVN r86244]
Remove BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION

Process #ifndef...#else...#endif blocks.

[SVN r86245]
Remove BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION

Process #ifdef...#else...#endif blocks.

[SVN r86246]
Simplify multi-component ifdefs containing BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION

[SVN r86248]
Remove remaining occurances of BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION

These evaded scripting.

[SVN r86249]
* Reformatted and completed legacy code removal patches from Stephen Kelly (note: this patch treads on changesets [86244] and [82545], will restore later) 
* Changed hashed indices internal data structure
* Changed hashed index iterator serialization
* Added reserve to hashed indices
* noexcept specification
* Lazy node allocation in insertion
* Doc typos

[SVN r86264]
Added support for WinAPI version specification.

[SVN r86307]