[Ohrrpgce] SVN: teeemcee/11416 Fix gh#41: Corrupt tileset graphics/crash in Test Game after changing ti

[subversion at HamsterRepublic.com]

teeemcee
2019-11-19 04:53:15 -0800 (Tue, 19 Nov 2019)
266
Fix gh#41: Corrupt tileset graphics/crash in Test Game after changing tilesets or reordering layers

A missing call to refresh_map_slice_tilesets.

Also improved code comments. We have a ratsnest of map slice updating functions
which I hope eventually is simplified.
---
U   wip/game.bas
U   wip/slices.bi
U   wip/whatsnew.txt
U   wip/yetmore2.bas