Added successful test for clang 3.3

git-svn-id: http://svn.boost.org/svn/boost/trunk@84189 b8fc166d-592f-0410-95f2-cb63ce0dd405
atomic: provide additive functionality for atomic<void*>

fixes #8501

git-svn-id: http://svn.boost.org/svn/boost/trunk@84190 b8fc166d-592f-0410-95f2-cb63ce0dd405
Fixed compilation with compilers not supporting AVX2.

git-svn-id: http://svn.boost.org/svn/boost/trunk@84191 b8fc166d-592f-0410-95f2-cb63ce0dd405
Fixed compilation with compilers not supporting AVX2.

git-svn-id: http://svn.boost.org/svn/boost/trunk@84192 b8fc166d-592f-0410-95f2-cb63ce0dd405
Disabled syslog sink when neither Boost.ASIO nor native syslog API are available.

git-svn-id: http://svn.boost.org/svn/boost/trunk@84193 b8fc166d-592f-0410-95f2-cb63ce0dd405
Worked around MSVC 10 compilation error. The compiler fails to resolve overloaded add_value functions when the attribute value is a string literal.

git-svn-id: http://svn.boost.org/svn/boost/trunk@84194 b8fc166d-592f-0410-95f2-cb63ce0dd405
Added a note about minimal supported 32 bit x86 CPU.

git-svn-id: http://svn.boost.org/svn/boost/trunk@84195 b8fc166d-592f-0410-95f2-cb63ce0dd405
Added an entry about LNK1123 error.

git-svn-id: http://svn.boost.org/svn/boost/trunk@84196 b8fc166d-592f-0410-95f2-cb63ce0dd405
Corrected formatting.

git-svn-id: http://svn.boost.org/svn/boost/trunk@84197 b8fc166d-592f-0410-95f2-cb63ce0dd405