Single Item Speed Run v0.2.0

• [Feature] Single Item Difficulty - Setting difficulty to single allows players to choose a specific target item rather than a random one
• [Feature] Ops can change settings of the default game
• [Feature] Added bStats plugin statistics - Server stats will be sent to bstats.org
• [Feature] Spawn coordinates can now be configured in the config.yml file
• [Bugfix] Furnace Extract events are now handled
• [Bugfix] Remove unnecessary default game quit code that was causing an exception