Hardcore Ender Expansion

Important
 - THIS IS A BETA! Please, use it for testing and report any bugs and strange behavior to the GitHub issue tracker; if you intend to try out the beta publicly (videos, streams), tweet me @chylexMC and if I can, I'll take a look :)
 - Large amount of the code changed, there is a chance I overlooked something so please report anything strange immediately!
 - Removed the old API in favor of IMC messages, this will crash mods that still use it

Additions
 - New IMC messages for Instability Orb item and mob management

Changes
 - Removed Essence Altar socket mechanics in favor of enhancements, make sure you picked up the gems before
 - Ender Dragon will try to return to 0,0 and freeze only if there is nobody nearby
 - Tweaked Instability Orb - exploding Orbs will hurt players, items and some of nearby Orbs, and TNT explosions will no longer prevent Orb explosions
 - Increased chance for Hidden Cellar to spawn rooms that aren't empty
 - Enhanced Brewing Stand potions extend by greater steps (less Redstone required)

Bugfixes
 - Mod entities can be named using Name Tags
 - Fixed a potential problem with Orb and derpy mods that don't follow recipe conventions
 - Energy Wand shows correct decimal places
 - Curse of Teleportation no longer causes desync when a mob is spawned directly on it