Move all the things (YES. Move them.)

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

logic/BaseUpdate.h

@@ -0,0 +1,49 @@
+/* Copyright 2013 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 <QObject>
+#include <QList>
+#include <QUrl>
+
+#include "net/DownloadJob.h"
+
+#include "tasks/Task.h"
+
+class MinecraftVersion;
+class BaseInstance;
+
+/*!
+ * The game update task is the task that handles downloading instances' files.
+ */
+class BaseUpdate : public Task
+{
+	Q_OBJECT
+public:
+	explicit BaseUpdate(BaseInstance *inst, QObject *parent = 0);
+	
+	virtual void executeTask() = 0;
+
+protected slots:
+	//virtual void error(const QString &msg);
+	void updateDownloadProgress(qint64 current, qint64 total);
+	
+protected:
+	JobListQueue download_queue;
+	BaseInstance *m_inst;
+};
+
+