GUI Rendering and various fixes

src/api/java/appeng/api/storage/IStorageChannel.java

@@ -95,7 +95,7 @@ public interface IStorageChannel<T extends IAEStack<T>>
 	 * @throws IOException
 	 */
 	@Nullable
-	T readFromPacket( @Nonnull PacketBuffer input ) throws IOException;
+	T readFromPacket( @Nonnull PacketBuffer input );
 
 	/**
 	 * create from nbt data

src/api/java/appeng/api/storage/data/IAEStack.java

@@ -164,7 +164,7 @@ public interface IAEStack<T extends IAEStack<T>>
 	 *
 	 * @throws IOException
 	 */
-	void writeToPacket( PacketBuffer data ) throws IOException;
+	void writeToPacket( PacketBuffer data );
 
 	/**
 	 * Clone the Item / Fluid Stack