Ellipses -> Ellipsis rename (the dictionary really says that it should
be Ellipsis!).
Bumped the API version because a linker-visible symbol is affected.
Old C code will still compile -- there's a b/w compat macro.
Similarly, old Python code will still run, builtin exports both
Ellipses and Ellipsis.
diff --git a/Python/bltinmodule.c b/Python/bltinmodule.c
index c1c3ed9..cd3d05f 100644
--- a/Python/bltinmodule.c
+++ b/Python/bltinmodule.c
@@ -1632,7 +1632,9 @@
 	INCREF(builtin_dict);
 	initerrors();
 	(void) dictinsert(builtin_dict, "None", None);
-	(void) dictinsert(builtin_dict, "Ellipses", Py_Ellipses);
+	(void) dictinsert(builtin_dict, "Ellipsis", Py_Ellipsis);
+	/* And once more for bad spellers like me :-( */
+	(void) dictinsert(builtin_dict, "Ellipses", Py_Ellipsis);
 }