Tweak some comments and code alignment.
Fix right-hand-side border joint in veh_interact window.
Add a draw_border() function and use it to draw borders.
Define BORDER_COLOR and use that.
Remove border colour comment in cursesport.cpp as it's now settable.
Use defined border colour for some UI joinery.
Fix vehicle interaction install-list overwriting border.
Don't break custom border colours.
Merge branch 'master' into veh_interact_more

Conflicts:
	src/game.cpp
Merge branch 'veh_interact_more' into ui_testing

Conflicts:
	src/veh_interact.cpp