Major Refactoring of Bootstrap Code (#75)

- Refactored boostrap code:
  * Completely reworked item/block/tile registration.
  * Fixed server side startup.
  * Fixed server side startup.
  * More documentation.
  * More heavy cleanup
  * More cleanups.
  * Major refactoring of state mapping and fixes a lot of other issue related to item rendering.
  * Fixes sky chest item models (no item TESR).
  * Only use CachingRotatingBakedModel for tile entities automatically.
  Fix default rotation of quartz pillar for item model.
  * Used method reference instead of lambda for ItemMeshDefinition for multiparts.
  * Removed unnecessary IHasSpecialItemModel
  * Removed unused IconReg class.
  * Updated resource pack version.

src/main/java/appeng/items/parts/ItemMultiPart.java

@@ -23,20 +23,16 @@ import java.lang.reflect.InvocationTargetException;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Comparator;
-import java.util.EnumSet;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
 import java.util.Set;
-
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
 
 import com.google.common.base.Preconditions;
 
-import net.minecraft.client.renderer.ItemMeshDefinition;
-import net.minecraft.client.renderer.block.model.ModelResourceLocation;
 import net.minecraft.creativetab.CreativeTabs;
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.item.Item;
@@ -75,20 +71,13 @@ public final class ItemMultiPart extends AEBaseItem implements IPartItem, IItemG
 	{
 		Preconditions.checkNotNull( partHelper );
 
-		this.registered = new HashMap<Integer, PartTypeWithVariant>( INITIAL_REGISTERED_CAPACITY );
+		this.registered = new HashMap<>( INITIAL_REGISTERED_CAPACITY );
 
-		this.setFeature( EnumSet.of( AEFeature.Core ) );
 		this.setHasSubtypes( true );
 
 		instance = this;
 	}
 
-	@Override
-	public ItemMeshDefinition getItemMeshDefinition()
-	{
-		return itemstack -> new ModelResourceLocation( getTypeByStack( itemstack ).getModel(), null );
-	}
-
 	@Nonnull
 	public final ItemStackSrc createPart( final PartType mat )
 	{