Rendering cleanup

Replaces the reflexive instantiation of the Renderes with a factory
method.

Some optimizations to the renderers to no longer push the whole OpenGL state to the stack.

General cleanup of duplicate code, etc

src/main/java/appeng/block/storage/BlockChest.java

@@ -27,10 +27,12 @@ import net.minecraft.item.ItemStack;
 import net.minecraft.world.World;
 import net.minecraftforge.common.util.ForgeDirection;
 
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
+
 import appeng.api.AEApi;
 import appeng.api.storage.ICellHandler;
 import appeng.block.AEBaseTileBlock;
-import appeng.client.render.BaseBlockRender;
 import appeng.client.render.blocks.RenderMEChest;
 import appeng.core.features.AEFeature;
 import appeng.core.localization.PlayerMessages;
@@ -50,9 +52,10 @@ public class BlockChest extends AEBaseTileBlock
 	}
 
 	@Override
-	protected Class<? extends BaseBlockRender> getRenderer()
+	@SideOnly( Side.CLIENT )
+	protected RenderMEChest getRenderer()
 	{
-		return RenderMEChest.class;
+		return new RenderMEChest();
 	}
 
 	@Override