new: dev: Add basic mod debugging
Merge pull request #116 from donat-b/mod_debug

new: dev: Support for basic mod debugging (written by rubenwardy)
Layers in mapgen v7
update games/default
chg: usr: Add keymap for player list to key change menu (fixes #77)
Merge pull request #119 from donat-b/playerlist

chg: usr: Add keymap for playerlist to key change menu (fixes #77)