Updated MetaStation v24A.dmm to MetaStation v24B.dmm
-Fixed disposals mass driver path being blocked by grilles in space
-Also added a glass door and conveyor to the disposals MULEBOT destination, meaning the whole maint area won't lose pressure if the blast door is left open.
Merge pull request #64 from Metacide/master

Updated MetaStation v24A.dmm to MetaStation v24B.dmm