Bring back full log strings for commands, just a bit sanitized

Hack checker to run engine with record file received (uses hardcoded paths)

Prevent 'black team color' error

Oops, forgot path

Cleaver tweaks based on feedback. Nerf damage, shrink radius. This means cleaver will embed into ground quite a bit further.

oops. more specific ammo tests. maybe could use a few more properties

Allow moving after firing cleaver. This changes multishoot behaviour quite a bit. Needs a lot of testing.

Credit links now yellow instead of blue.

Remove Structure from localisation

Implements protocol message JOINING on frontend, so client in a room always displays correct room name, even when room name changes. Fixes issue #522.