Fixes #7144
Fixes bubble/hull shield generators not updating air zones, update_nearby_tiles() cleanup.
Merge pull request #7139 from mwerezak/shield-zas

Fixes bubble/hull shield generators not updating air zones, update_nearby_tiles() cleanup.
Merge pull request #7159 from mwerezak/logo

Fixes broken [logo] tag
Merge remote-tracking branch 'upstream/master' into dev

Conflicts:
	code/game/objects/structures.dm
	code/game/objects/structures/inflatable.dm