Fixes #675 No disabled feature should log spam or crash anymore.

Deprecates the old usage of the AEItemDefinitions via the direct method access of

* blocks()
* parts()
* items()
* materials()

and thus use the new re-direct via definitions().

All definitions are now initialized, no matter what. But SubItems, Items and Blocks are not registered, if by chance are disabled.

src/main/java/appeng/worldgen/meteorite/FalloutSnow.java

@@ -0,0 +1,39 @@
+package appeng.worldgen.meteorite;
+
+
+import net.minecraft.init.Blocks;
+
+import appeng.api.definitions.IBlockDefinition;
+
+
+public class FalloutSnow extends FalloutCopy
+{
+	public static final double SNOW_THRESHOLD = 0.7;
+	public static final double ICE_THRESHOLD = 0.5;
+	private final MeteoriteBlockPutter putter;
+
+	public FalloutSnow( IMeteoriteWorld w, int x, int y, int z, MeteoriteBlockPutter putter, IBlockDefinition skyStoneDefinition )
+	{
+		super( w, x, y, z, putter, skyStoneDefinition );
+		this.putter = putter;
+	}
+
+	@Override
+	public int adjustCrater()
+	{
+		return 2;
+	}
+
+	@Override
+	public void getOther( IMeteoriteWorld w, int x, int y, int z, double a )
+	{
+		if ( a > SNOW_THRESHOLD )
+		{
+			this.putter.put( w, x, y, z, Blocks.snow );
+		}
+		else if ( a > ICE_THRESHOLD )
+		{
+			this.putter.put( w, x, y, z, Blocks.ice );
+		}
+	}
+}