Document bug fix.  Regenerate docs.
Refs #8569.

git-svn-id: http://svn.boost.org/svn/boost/trunk@84460 b8fc166d-592f-0410-95f2-cb63ce0dd405
Fixed syntax error.

git-svn-id: http://svn.boost.org/svn/boost/trunk@84461 b8fc166d-592f-0410-95f2-cb63ce0dd405
Fix link to CopyConstructible

git-svn-id: http://svn.boost.org/svn/boost/trunk@84464 b8fc166d-592f-0410-95f2-cb63ce0dd405
Chaned project1st and project2nd function objects to return copies rather than references to arguments, preventing a dangling reference when the type of the argument passed in is not exactly the same as the template argument of the projection function object

git-svn-id: http://svn.boost.org/svn/boost/trunk@84466 b8fc166d-592f-0410-95f2-cb63ce0dd405
Thread: extend duration check from 200ms to 300ms.

git-svn-id: http://svn.boost.org/svn/boost/trunk@84467 b8fc166d-592f-0410-95f2-cb63ce0dd405
bug fix relating to png's compression settings.

git-svn-id: http://svn.boost.org/svn/boost/trunk@84469 b8fc166d-592f-0410-95f2-cb63ce0dd405