Pet Bats

See youtube video.

• if not fighting, will always follow and remain close to the owner
• if owner isn't present (left server), remains where he last was
• tries and finds a hanging spot if it can, will not leave whatever area it is in
• can be startled from hanging spot by a foreign player, by attacks, by breaking the block, or by dropping pumpking pie
• if it gets stuck and the owner runs further off, will teleport directly into owner inventory
• bats are not fire or lava proof, or particularly resistant to explosions
• levels up by dealing damage, does not require actual kills
• levelling up boosts max health and damage
• upon reaching level 3, pet bats gain a 33% life steal on attack effect
• upon reaching max level, pet bats gain enchantment visuals
• upon "death" returns as Item to owner inventory and has to be fed before it can fly again
• if owner isn't on the server when it dies, it really dies and is lost
• your inventory is a completely safe place, unless you happen to die
• ownership of a Pet Bat does not transfer with the Item bat, the tamer stays it's owner
• a hurt pet bat can be healed by crafting it with pumpkin pie or by dropping pumping pie for feeding
• foreign players can feed them pumpkin pie by dropping it nearby
• only freshly dropped pie counts
• handheld bats grant night vision, regardless of their health
• yes, you can pour your cruelty, your malice, and your will to dominate all life into your bat using an anvil and pumpkin pie
• apart from healing the bat that doesn't do much

Changelog included in file. As always, the mod source is also included.