core: add uploadStatus signal to uploadDiveLogsDE

The uploadStatus signal can be used to inform the user about
the process e.g.
- preparing zip file
- starting actual upload

It is a suplement to uploadProgress, that only informs about
the network part.

Signed-off-by: Jan Iversen <jan@casacondor.com>

core/uploadDiveLogsDE.h

@@ -25,6 +25,7 @@ private slots:
 signals:
 	void uploadFinish(bool success, const QString &text);
 	void uploadProgress(qreal percentage, qreal total);
+	void uploadStatus(const QString &text);
 	
 private:
 	uploadDiveLogsDE();