merged [85302] from trunk

git-svn-id: http://svn.boost.org/svn/boost/branches/release@85330 b8fc166d-592f-0410-95f2-cb63ce0dd405
Merge from trunk:
* Do not treat critcal errors as bad_lexical_cast exceptions, but if exceptions are on, throw correct exception instead (refs #8966)

git-svn-id: http://svn.boost.org/svn/boost/branches/release@85331 b8fc166d-592f-0410-95f2-cb63ce0dd405
Merge from trunk:
* Workarounds for Intel compiler (fixes #8956)


git-svn-id: http://svn.boost.org/svn/boost/branches/release@85332 b8fc166d-592f-0410-95f2-cb63ce0dd405
[utility] Fixes to value_init docs.

git-svn-id: http://svn.boost.org/svn/boost/branches/release@85335 b8fc166d-592f-0410-95f2-cb63ce0dd405