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/ThirdParty/7zpp/Include/SevenZipException.h

@@ -0,0 +1,30 @@
+#pragma once
+
+
+#include <exception>
+#include "SevenString.h"
+#include "AllowWindowsPlatformTypes.h"
+
+namespace SevenZip
+{
+	TString StrFmt(const TCHAR* format, ...);
+	TString GetWinErrMsg(const TString& contextMessage, DWORD lastError);
+	TString GetCOMErrMsg(const TString& contextMessage, HRESULT lastError);
+
+	class SevenZipException
+	{
+	protected:
+
+		TString m_message;
+
+	public:
+
+		SevenZipException();
+		SevenZipException(const TString& message);
+		virtual ~SevenZipException();
+
+		const TString& GetMessage() const;
+	};
+}
+
+#include "HideWindowsPlatformTypes.h"