fixed a bug where the app would not generate correct config if there is no existing config

src/net/torvald/terrarum/utils/JsonWriter.kt

@@ -1,41 +0,0 @@
-package net.torvald.terrarum.utils
-
-import com.badlogic.gdx.utils.Json
-import com.badlogic.gdx.utils.JsonWriter
-
-/**
- * Created by minjaesong on 2016-03-04.
- */
-object JsonWriter {
-
-    private val formattingRegex = Regex("""(?<=[\{,\[])|(?=[\]}])""")
-
-    /**
-     * serialise a class to the file as JSON, using Google GSON.
-     *
-     * @param c: a class
-     * @param path: path to write a file
-     */
-    @Throws(java.io.IOException::class)
-    fun writeToFile(c: Any, path: String) {
-        val writer = java.io.FileWriter(path, false)
-        writer.write(Json(JsonWriter.OutputType.json).toJson(c).replace(formattingRegex, "\n"))
-        writer.close()
-    }
-
-    /**
-     * serialise JsonObject to the file as JSON, using Google GSON.
-     *
-     * @param jsonObject
-     * @param path: path to write a file
-     */
-    /*@Throws(java.io.IOException::class)
-    fun writeToFile(jsonObject: Json, path: String) {
-        val writer = java.io.FileWriter(path, false)
-
-        writer.write(jsonObject.)
-        //writer.write(jsonObject.toString().replace(formattingRegex, "\n"))
-        writer.close()
-    }*/
-
-}