Last merge for 1.55

git-svn-id: http://svn.boost.org/svn/boost/branches/release@85702 b8fc166d-592f-0410-95f2-cb63ce0dd405
Last merge for 1.55 (Intrusive)

git-svn-id: http://svn.boost.org/svn/boost/branches/release@85703 b8fc166d-592f-0410-95f2-cb63ce0dd405
Last merge for 1.55 (Container)

git-svn-id: http://svn.boost.org/svn/boost/branches/release@85704 b8fc166d-592f-0410-95f2-cb63ce0dd405
Last merge for 1.55 (Interprocess)

git-svn-id: http://svn.boost.org/svn/boost/branches/release@85705 b8fc166d-592f-0410-95f2-cb63ce0dd405
Merge multiprecision doc changes.

git-svn-id: http://svn.boost.org/svn/boost/branches/release@85711 b8fc166d-592f-0410-95f2-cb63ce0dd405
Merged changes from trunk.

git-svn-id: http://svn.boost.org/svn/boost/branches/release@85713 b8fc166d-592f-0410-95f2-cb63ce0dd405
Merge removing support for old compilers.

git-svn-id: http://svn.boost.org/svn/boost/branches/release@85715 b8fc166d-592f-0410-95f2-cb63ce0dd405
Merge all Boost.Config changes from Trunk.

git-svn-id: http://svn.boost.org/svn/boost/branches/release@85725 b8fc166d-592f-0410-95f2-cb63ce0dd405
Merge minor fixes from Trunk.

git-svn-id: http://svn.boost.org/svn/boost/branches/release@85727 b8fc166d-592f-0410-95f2-cb63ce0dd405