Boost.Log merged to trunk.

[SVN r83860]
Boost.Log merged to release.

[SVN r84333]
Updated changelog, corrected comments.

[SVN r84336]
Fixes #8585. Fixed typos in docs and comments.

[SVN r84352]
Merged changes from trunk. Fixes #8614.

[SVN r84677]
Added a note regarding setlocale bug in Windows XP with MinGW.

[SVN r84780]
Merged changes from trunk. Fixes #8703.

[SVN r84818]
Raised template instantiation limit for darwin toolset.

[SVN r84829]
Removed unused forward declaration.

[SVN r84867]
Merged recent changes from trunk. Fixes #8730.

[SVN r85093]
Merged latest changes from trunk.

[SVN r85461]
Worked around compilation problem with clang. Renamed parsers tests to avoid alarming Windows UAC. Fixes #9050.

[SVN r85477]
Added Format parameter to the table of syslog and event log parameters.

[SVN r85490]
Merged recent changes from trunk.

[SVN r85657]
Merged changes from trunk.

[SVN r85713]
Merged changes from trunk.

[SVN r85819]
Fixed compilation.

[SVN r85834]
Merged latest changes from trunk.

[SVN r85986]
Merged changes from trunk.

[SVN r86016]
Merged latest changes from trunk.

[SVN r86164]