Added compatibility for .frdt files

Also cleaned up the code a little

Program.cs

@@ -88,7 +88,7 @@ static bool ToJSON(Dictionary<string, Assembly> libraries)
         {
             OpenFileDialog ofd = new OpenFileDialog()
             {
-                Filter = "Resonite DataTree File (*.brson;*.lz4bson;*.7zbson)|*.brson;*.lz4bson;*.7zbson",
+                Filter = "Resonite DataTree File (*.frdt;*.brson;*.lz4bson;*.7zbson)|*.frdt;*.brson;*.lz4bson;*.7zbson",
                 Title = "Choose a DataTree file for conversion",
                 CheckFileExists = true,
                 CheckPathExists = true,
@@ -124,13 +124,10 @@ static bool ToJSON(Dictionary<string, Assembly> libraries)
             StreamWriter fileStream = File.CreateText(save.FileName);
 
             libraries.TryGetValue("Newtonsoft.Json", out Assembly NewtonsoftJson);
-            Console.WriteLine(NewtonsoftJson.GetTypes());
-            ConstructorInfo aaaaaa = NewtonsoftJson.GetType("Newtonsoft.Json.JsonTextWriter").GetConstructor(new Type[] {typeof(TextWriter)});
-            object testy = aaaaaa.Invoke(new object[] { fileStream });
-            //object testy = NewtonsoftJson.GetType("JsonTextWriter").GetConstructor(new Type[] { NewtonsoftJson.GetType("Newtonsoft.Json.JsonTextWriter") }).Invoke(null, new object[] { fileStream });
-            //JsonTextWriter test = new JsonTextWriter(fileStream);
+            ConstructorInfo jsonTextWriterConstructor = NewtonsoftJson.GetType("Newtonsoft.Json.JsonTextWriter").GetConstructor(new Type[] {typeof(TextWriter)});
+            object jsonTextWriter = jsonTextWriterConstructor.Invoke(new object[] { fileStream });
             var writemethod = dataTreeConverter.GetMethod("Write", BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static);
-            writemethod.Invoke(null, new object[] { convert, testy });
+            writemethod.Invoke(null, new object[] { convert, jsonTextWriter });
 
             fileStream.Dispose();
             fileStream.Close();

README.md

@@ -1,5 +1,6 @@
 # Resonite DataTree Converter
 
-This Windows tool allows you to convert any Resonite DataTree object file (.brson, .7zbson, .lz4bson) to JSON and vice-versa.
+This Windows tool allows you to convert any Resonite DataTree object file (.frdt, .brson, .7zbson, .lz4bson) to JSON and vice-versa.
+(To save a json file back to .frdt, save it as any other file type, then rename the extension. Yes, that is how it works.)
 
 This tool uses Resonite's libraries to convert them, so it sohuld hopefully work for the forseeable future. This tool saves the location that you selected for Resonite in `%LOCALAPPDATA%/Lexevolution/Resonite DataTree Converter/app.config`.