mod_register_web should response 404 instead of process crash.

src/mod_register_web.erl

@@ -140,7 +140,10 @@ process([<<"change_password">>],
                 list_to_binary([?T(<<"There was an error changing the password: ">>),
                                 ?T(get_error_text(Error))]),
 	  {404, [], ErrorText}
-    end.
+    end;
+
+process(Path, _Request) ->
+    {404, [], "Not Found"}.
 
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