Added support for thumbnail images in waypoint info

+ fixed and improved exif parser

src/GUI/tooltip.h

@@ -9,10 +9,12 @@ class ToolTip
 {
 public:
 	void insert(const QString &key, const QString &value);
+	void setImage(const QString &img) {_img = img;}
 	QString toString();
 
 private:
 	QList<KV> _list;
+	QString _img;
 };
 
 #endif // TOOLTIP_H