Changes since tag v16

commit c177ce2796fad494eb99046dd8e85f2207116548
Author: David Lynch <kemayo@gmail.com>
Date:   Fri Nov 25 00:44:26 2016 -0600

    Remember current map floor, too

commit 23833499e43717d3eb33d576aa2f061003e98e7a
Author: David Lynch <kemayo@gmail.com>
Date:   Thu Nov 24 21:59:19 2016 -0600

    Don't reset the world map out of micro dungeons

