Allow trapped chest in /sendchest
Fix old item attachment support
Add basic mailing lists. Pending approval from NuclearW

New commands:
/xmail mailinglists  = List all mailing lists
/xmail newlist <list>  = Create a list
/xmail joinlist <list>  = Join a list
/xmail leavelist <list>  = Leave a list
/xmail disbandlist <list>  = Disband a list

Pending Commands (ideas):
/xmail addlistowner <list> <owner>  = Adds an owner to a list
/xmail removelistowner <list> <owner>  = Removes an owner from a list

How to send to a list:
Just like you normally would (eg: /xmail send) except with "#listname".
Eg: /xmail send #Admins Please watch turt2live, he added a new feature

(The above command would send "Please watch turt2live, he added a new
feature" to everyone in the list "Admins")