Fixes #2675: Set fullBlock correctly afterwards.

Reduces the visibility of some methods as these should be access through the public methods of Block or the overridden ones.
Removes now useless getCheckedSubBlocks.

src/main/java/appeng/block/paint/BlockPaint.java

@@ -94,7 +94,7 @@ public class BlockPaint extends AEBaseTileBlock
 
 	@Override
 	@SideOnly( Side.CLIENT )
-	public void getCheckedSubBlocks( final Item item, final CreativeTabs tabs, final List<ItemStack> itemStacks )
+	public void getSubBlocks( final Item item, final CreativeTabs tabs, final List<ItemStack> itemStacks )
 	{
 		// do nothing
 	}