Improvemants for is_copy_constructible triat (refs #8802):
* Added small in-place documentation for trait
* Trait is now included by boost/type_traits.hpp header
* Added qbk documentation
* Documentation regenerated

git-svn-id: http://svn.boost.org/svn/boost/trunk@85002 b8fc166d-592f-0410-95f2-cb63ce0dd405
Improved rvalues move support for elements of circular_buffer (refs #7888): 
* all `erase` methods now use move construction to to move elements
* space optimized circullar buffer now has move constructor, move assignment and functions that work with rvalues 
* more methods marked as BOOST_NOEXCEPT
* much more tests

git-svn-id: http://svn.boost.org/svn/boost/trunk@85003 b8fc166d-592f-0410-95f2-cb63ce0dd405
fixed typos in  usage of variadic templates

git-svn-id: http://svn.boost.org/svn/boost/trunk@85004 b8fc166d-592f-0410-95f2-cb63ce0dd405