Mk2Rev1

various bugfixes and such.
also bookmarks, temp song loaderm and undo overhaul with near complete multiplayer, but menu items disabled. i really wish i could split this into multiple commits, but i don't know how to work unreal.

Plugins/ZipUtility-ue4/Source/WindowsUtility/Public/WFUFolderWatchInterface.h

@@ -0,0 +1,32 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+#pragma once
+
+#include "WFUFolderWatchInterface.generated.h"
+
+UINTERFACE(MinimalAPI)
+class UWFUFolderWatchInterface : public UInterface
+{
+	GENERATED_UINTERFACE_BODY()
+};
+
+class WINDOWSFILEUTILITY_API IWFUFolderWatchInterface
+{
+	GENERATED_IINTERFACE_BODY()
+
+public:
+
+	/**
+	* Called when a file inside the folder has changed
+	* @param FilePath Path of the file that has changed
+	*/
+	UFUNCTION(BlueprintNativeEvent, Category = FolderWatchEvent)
+	void OnFileChanged(const FString& FileName, const FString& FilePath);
+
+	/**
+	* Called when a directory inside the folder has changed
+	* @param FilePath Path of the file that has changed
+	*/
+	UFUNCTION(BlueprintNativeEvent, Category = FolderWatchEvent)
+	void OnDirectoryChanged(const FString& DirectoryName, const FString& DirectoryPath);
+};