When reading the cfg, we now apply keys.cfg before keys_default.cfg. Fixes default binds always being re-applied as the primary on startup. This was breaking binds on non-US layouts, AZERTY for example: rebinding +prevskin to A would end up with Q back as the primary and A as a secondary after a restart. But Q is +left for AZERTY users, so moving left while upgrading building blocks was switching skins... Tradeoff: any unbound command gets filled in from defaults on startup