Moved some parts to a static lib so both the executable and the tests can link to it.

Written additional tests.

src/MasterController.h

@@ -5,16 +5,18 @@
 #include <map>
 
 class ConnectionConfig;
+class ConnectionList;
 class ConnectionListModel;
 class ConnectionManagerWindow;
 
 /** \brief Controller class responsible for all things global.
  */
-class MasterController : public QObject
-{
+class MasterController : public QObject {
 	Q_OBJECT
 public:
 	explicit MasterController(QObject *parent = 0);
+	MasterController(const MasterController&) = delete;
+	MasterController &operator=(const MasterController&) = delete;
 	~MasterController();
 
 	void init();
@@ -33,7 +35,7 @@ signals:
 public slots:
 
 private:
-
+	ConnectionList *m_connectionList = nullptr;
 	ConnectionListModel *m_connectionListModel = nullptr;
 	ConnectionManagerWindow *m_connectionManagerWindow = nullptr;
 };