Makefile.am: Add new header.

2011-07-09  Jonathan Wakely  <jwakely.gcc@gmail.com>

	* include/Makefile.am: Add new header.
	* include/Makefile.in: Regenerate.
	* include/std/scoped_allocator: New.
	* doc/xml/manual/status_cxx200x.xml: Update.
	* testsuite/20_util/scoped_allocator/1.cc: New.
	* testsuite/20_util/scoped_allocator/propagation.cc: New.
	* testsuite/20_util/scoped_allocator/requirements/typedefs.cc: New.
	* testsuite/20_util/scoped_allocator/requirements/
	explicit_instantiation.cc: New.

From-SVN: r176079