Update precompiled pdfium for mac to chromium/3071 and add version info file with minimal build instructions

custom_widgets/yacreader_deleting_progress.h

@@ -0,0 +1,26 @@
+#ifndef YACREADER_DELETING_PROGRESS_H
+#define YACREADER_DELETING_PROGRESS_H
+
+#include <QWidget>
+
+class QLabel;
+
+class YACReaderDeletingProgress : public QWidget
+{
+	Q_OBJECT
+public:
+	explicit YACReaderDeletingProgress(QWidget *parent = 0);
+	QSize sizeHint() const;
+signals:
+	
+public slots:
+	
+protected:
+	void paintEvent(QPaintEvent *);
+
+private:
+	QLabel * textMessage;
+	
+};
+
+#endif // YACREADER_DELETING_PROGRESS_H