Dimensions v5.6.0

This release adds:

• Dynamic dimensions support which allows a plugin in a terraria server to tell dimensions a specific ip/port to route the client to without it having to be in the dimensions config
• More support for extensions - certain packets sent by dimensions can be handled

Fixes:

• Reading strings in packets for some cases
• General code fixes

This is a pre-release because it contains a known bug with counting players (that is used to display the count in /who). If you accept this bug (or you remove the message from /who) then there are no other known issues.