CrumblePath: Fix Crash

QWidget::mousePressEvent() closes the widget if the position is
not within the rect. A subsequent call to update() amounts to
accessing potentially corrupt memory. Hence call update() before
calling QWidget::mousePressEvent().

Change-Id: I850471d3a1dfdb0a4f0541a69fd2f239dbf8b5fa
Reviewed-by: Kai Koehne <kai.koehne@nokia.com>

src/libs/utils/crumblepath.cpp

@@ -173,34 +173,34 @@ void CrumblePathButton::tintImages()
 
 void CrumblePathButton::leaveEvent(QEvent *e)
 {
-    QPushButton::leaveEvent(e);
     m_isHovering = false;
     update();
+    QPushButton::leaveEvent(e);
 }
 
 void CrumblePathButton::mouseMoveEvent(QMouseEvent *e)
 {
     if (!isEnabled())
         return;
-    QPushButton::mouseMoveEvent(e);
     m_isHovering = true;
     update();
+    QPushButton::mouseMoveEvent(e);
 }
 
 void CrumblePathButton::mousePressEvent(QMouseEvent *e)
 {
     if (!isEnabled())
         return;
-    QPushButton::mousePressEvent(e);
     m_isPressed = true;
     update();
+    QPushButton::mousePressEvent(e);
 }
 
 void CrumblePathButton::mouseReleaseEvent(QMouseEvent *e)
 {
-    QPushButton::mouseReleaseEvent(e);
     m_isPressed = false;
     update();
+    QPushButton::mouseReleaseEvent(e);
 }
 
 void CrumblePathButton::changeEvent(QEvent *e)