2015-05-01  Edward Smith-Rowland  <3dw4rd@verizon.net>

	Inline one-line erasure dispatch functions.
	* include/experimental/forward_list (erase_if(), erase()): Inline.
	* include/experimental/list (erase_if(), erase()): Inline.
	* include/experimental/map (erase_if(*)): Inline.
	* include/experimental/set (erase_if(*)): Inline.
	* include/experimental/string (erase_if(), erase()): Inline.
	* include/experimental/unordered_map (erase_if(*)): Inline.
	* include/experimental/unordered_set (erase_if(*)): Inline.