fix stale cached overmap
draw a scrollbar with BORDER_COLOR if this scrollbar is odd
Tweaking of mod selection window
Merge pull request #5700 from BevapDin/fix-my-overmap-bug

fix stale cached overmap
Moves FANGS mouthgear check

Muzzles used to block mouthgear so there wasn't any point in checking
for it if you had a muzzle.  With the XL mouthgear, that's no longer the
case, so pulled the check into general from the no-muzzle option and
deleted the reference to MUZZLE_BEAR since that doesn't affect the
chance to bite.
Merge branch 'fangfix' of github.com:KA101/Cataclysm-DDA
Merge branch 'scrollbar' of github.com:illi-kun/Cataclysm-DDA
Merge branch 'mod_win' of github.com:illi-kun/Cataclysm-DDA