Fixed data base info retrieving through DBHelper, value(QString) should never be used because it is really slow. All items sorting should be done at db level or using std::sort.

YACReaderLibrary/package_manager.h

@@ -0,0 +1,24 @@
+#ifndef PACKAGE_MANAGER_H
+#define PACKAGE_MANAGER_H
+
+#include <QProcess>
+
+class PackageManager : public QObject
+{
+	Q_OBJECT
+public:
+	PackageManager();
+	void createPackage(const QString & libraryPath,const QString & dest);
+	void extractPackage(const QString & packagePath,const QString & destDir);
+	public slots:
+	void cancel();
+private:
+	bool creating;
+	QProcess * _7z;
+
+signals:
+	void exported();
+	void imported();
+};
+
+#endif