DR 1339
	* doc/xml/manual/status_cxx2011.xml: Update.
	* include/bits/stl_uninitialized.h (uninitialized_fill_n): Return
	an iterator.
	(__uninitialized_fill_n_a, __uninitialized_default_n_a): Likewise.
	* include/bits/stl_vector.h (vector::_M_fill_initialize,
	vector::_M_default_initialize): Use returned iterator.
	* include/bits/vector.tcc (vector::_M_fill_assign,
	vector::_M_fill_insert, vector::_M_default_append): Likewise.
	* testsuite/20_util/specialized_algorithms/uninitialized_fill_n/
	16505.cc: Adjust return type.
	* testsuite/20_util/specialized_algorithms/uninitialized_fill_n/
	dr1339.cc: New.

From-SVN: r215606