Update QHexEdit library to version 0.7.8

- closes #692

libs/qhexedit/src/qhexedit.cpp

@@ -14,6 +14,15 @@ const int BYTES_PER_LINE = 16;
 
 QHexEdit::QHexEdit(QWidget *parent) : QAbstractScrollArea(parent)
 {
+    _addressArea = true;
+    _addressWidth = 4;
+    _asciiArea = true;
+    _overwriteMode = true;
+    _highlighting = true;
+    _readOnly = false;
+    _cursorPosition = 0;
+    _lastEventSize = 0;
+
     _chunks = new Chunks();
     _undoStack = new UndoStack(_chunks, this);
 #ifdef Q_OS_WIN32

libs/qhexedit/src/qhexedit.h

@@ -11,7 +11,7 @@
 /** \mainpage
 QHexEdit is a binary editor widget for Qt.
 
-\version Version 0.7.7
+\version Version 0.7.8
 \image html qhexedit.png
 */