Fix ice/packed ice rendering and slipperiness

src/main/java/com/cricketcraft/chisel/block/BlockCarvableIce.java

@@ -17,6 +17,7 @@ import net.minecraft.world.World;
 import com.cricketcraft.chisel.api.ICarvable;
 import com.cricketcraft.chisel.api.carving.CarvableHelper;
 import com.cricketcraft.chisel.api.carving.IVariationInfo;
+import com.cricketcraft.chisel.api.rendering.ClientUtils;
 
 public class BlockCarvableIce extends BlockIce implements ICarvable {
 
@@ -26,6 +27,11 @@ public class BlockCarvableIce extends BlockIce implements ICarvable {
 		super();
 		carverHelper = new CarvableHelper(this);
 	}
+	
+	@Override
+	public int getRenderType() {
+		return ClientUtils.renderCTMId;
+	}
 
 	@Override
 	public IIcon getIcon(int side, int metadata) {

src/main/java/com/cricketcraft/chisel/block/BlockCarvablePackedIce.java

@@ -8,6 +8,7 @@ import net.minecraft.block.material.Material;
 import net.minecraft.client.renderer.texture.IIconRegister;
 import net.minecraft.creativetab.CreativeTabs;
 import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.init.Blocks;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
 import net.minecraft.stats.StatList;
@@ -18,6 +19,7 @@ import net.minecraft.world.World;
 import com.cricketcraft.chisel.api.ICarvable;
 import com.cricketcraft.chisel.api.carving.CarvableHelper;
 import com.cricketcraft.chisel.api.carving.IVariationInfo;
+import com.cricketcraft.chisel.api.rendering.ClientUtils;
 
 public class BlockCarvablePackedIce extends Block implements ICarvable {
 
@@ -26,8 +28,14 @@ public class BlockCarvablePackedIce extends Block implements ICarvable {
 	public BlockCarvablePackedIce() {
 		super(Material.ice);
 		carverHelper = new CarvableHelper(this);
+		this.slipperiness = Blocks.packed_ice.slipperiness;
 	}
 
+	@Override
+	public int getRenderType() {
+		return ClientUtils.renderCTMId;
+	}
+	
 	@Override
 	public IIcon getIcon(int side, int metadata) {
 		return carverHelper.getIcon(side, metadata);