Fixes #9332

git-svn-id: http://svn.boost.org/svn/boost/trunk@86626 b8fc166d-592f-0410-95f2-cb63ce0dd405
[geometry] Fixed self-turn points, neighboring function in get_turns did have the wrong meta-function. Also cleaned corresponding unit tests / added test cases for reported error (reported by Joan on mailing list)

git-svn-id: http://svn.boost.org/svn/boost/trunk@86627 b8fc166d-592f-0410-95f2-cb63ce0dd405
[geometry] fixed self_intersection_points unit test for clang, added missing include

git-svn-id: http://svn.boost.org/svn/boost/trunk@86628 b8fc166d-592f-0410-95f2-cb63ce0dd405
Thread: Adding pp variadic to asyn_func and fix some typos.

git-svn-id: http://svn.boost.org/svn/boost/trunk@86629 b8fc166d-592f-0410-95f2-cb63ce0dd405
Added some release notes for 1.56.

git-svn-id: http://svn.boost.org/svn/boost/trunk@86631 b8fc166d-592f-0410-95f2-cb63ce0dd405