Player Containers

not a major update by any means, but adds lol_us, en_ud, en_pt, and enws support (thanks MeeperCreep!)

Somehow I completely missed the basic and loose player containers completely not working from 0.2.3 onwards??? Anyway, that's fixed now.

another quick bc25 fix - this time it's making sure data is stored internally in a thread-safe way (plus hopefully fixing a related issue around spectator mode collisions)

quick bc25 fix to hopefully make the mod work with anshar

More BC25 fixes:

• Emergency fix to make sure that it doesn't try to do stuff with containers that don't exist
• Adventure mode behaviour fix that I had done before the emergency fix anyway