Move all the things (YES. Move them.)

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

logic/LegacyForge.h

@@ -0,0 +1,25 @@
+// 
+//  Copyright 2012 MultiMC Contributors
+// 
+//    Licensed under the Apache License, Version 2.0 (the "License");
+//    you may not use this file except in compliance with the License.
+//    You may obtain a copy of the License at
+// 
+//        http://www.apache.org/licenses/LICENSE-2.0
+// 
+//    Unless required by applicable law or agreed to in writing, software
+//    distributed under the License is distributed on an "AS IS" BASIS,
+//    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//    See the License for the specific language governing permissions and
+//    limitations under the License.
+//
+
+#pragma once
+#include "Mod.h"
+
+class MinecraftForge : public Mod
+{
+public:
+	MinecraftForge ( const QString& file );
+	bool FixVersionIfNeeded(QString newVersion);
+};