Merged recent changes from trunk.

git-svn-id: http://svn.boost.org/svn/boost/branches/release@85088 b8fc166d-592f-0410-95f2-cb63ce0dd405
Merged recent changes from trunk.

git-svn-id: http://svn.boost.org/svn/boost/branches/release@85092 b8fc166d-592f-0410-95f2-cb63ce0dd405
Merged recent changes from trunk. Fixes #8730.

git-svn-id: http://svn.boost.org/svn/boost/branches/release@85093 b8fc166d-592f-0410-95f2-cb63ce0dd405
[regression] Merged out-of-sync files from trunk to release. Make bin dir ignored.

git-svn-id: http://svn.boost.org/svn/boost/branches/release@85095 b8fc166d-592f-0410-95f2-cb63ce0dd405