Move all the things (YES. Move them.)

Also, implemented some basic modlist logic, to be wired up.

logic/NostalgiaInstance.h

@@ -0,0 +1,10 @@
+#pragma once
+
+#include "OneSixInstance.h"
+
+class NostalgiaInstance : public OneSixInstance
+{
+	Q_OBJECT
+public:
+	explicit NostalgiaInstance(const QString &rootDir, SettingsObject * settings, QObject *parent = 0);
+};