2018-01-10  Murray Cumming  <murrayc@murrayc.com>

	2.99.10

2017-11-09  Kjell Ahlstedt  <kjellahlstedt@gmail.com>

	slot_base::set_parent(): Create a dummy slot_rep if necessary

	set_parent() must always store the supplied parent pointer and cleanup
	function pointer, or else there may be a memory leak. The pointers are
	stored in slot_rep. Bug 167714

2017-11-09  Kjell Ahlstedt  <kjellahlstedt@gmail.com>

	visit_each.h: Add an #include