/*
	 * Table Organization:
	 *
	 * skills:
	 *   id				int(11)				[primary] [auto_inc]
	 *   name				varchar(35)			[unique]
	 *
	 * players:
	 *   id				int(11)				[primary] [auto_inc]
	 *   name				varchar(35)			[unique]
	 *
	 * exp
	 *   id				int(11)				[primary] [auto_inc]
	 *   skill_id			int(11)
	 *   player_id			int(11)
	 *   exp				int(11)
	 *
	 * irules
	 *   id				int(11)				[primary] [auto_inc]
	 *   item				int(4)
	 *   level				int(3)
	 *
	 * xprules
	 *   id				int(11)				[primary] [auto_inc]
	 *   target_e			varchar(35)			  #entity
	 *   target_b			int(11)				  #block
	 *   action				varchar(35)			  #break, kill, etc.
	 *   exp				int(11)
	 *
	 * skill_irules
	 *   id				int(11)				[primary] [auto_inc]
	 *   skill_id			int(11)
	 *   irule_id			int(11)
	 *
	 * skill_xprules
	 *   id				int(11)				[primary] [auto_inc]
	 *   skill_id			int(11)
	 *   xprule_id			int(11)
	 *
	 */