* include/bits/stl_queue.h: Include missing header.
	* include/bits/stl_stack.h: Likewise.
	* testsuite/23_containers/priority_queue/requirements/
	uses_allocator.cc: New.
	* testsuite/23_containers/queue/requirements/uses_allocator.cc: New.
	* testsuite/23_containers/stack/requirements/uses_allocator.cc: New.

From-SVN: r215470