fixed comiplation in Linux (Ubuntu)

line 117: #define _WIN64 1
must be removed in ./compressed_archive/libp7zip/CPP/myWindows/StdAfx.h

"cannot find -lpulse" compiling under Qt 5.0.2 can be fixed creating a symbolic link from libpulse.so.0 to libpulse.so (further research is needed)

common/check_new_version.h

@@ -0,0 +1,27 @@
+#ifndef __CHECKUPDATE_H
+#define __CHECKUPDATE_H
+
+#include "http_worker.h"
+#include "yacreader_global.h"
+
+#include <QWidget>
+#include <QByteArray>
+#include <QThread>
+
+ class HttpVersionChecker : public HttpWorker
+ {
+		 Q_OBJECT
+	public:
+		HttpVersionChecker();
+	public slots:
+
+	private:
+		bool found;
+	private slots:
+		bool checkNewVersion(QString sourceContent);
+		void checkNewVersion(const QByteArray & data);
+	signals:
+		void newVersionDetected();
+ };
+
+#endif