Added workaround for crash on Linux

Author: evoggy

lib/cfclient/ui/dialogs/bootloader.py

@@ -163,7 +163,12 @@ def closeEvent(self, event):
 
     @pyqtSlot()
     def pathBrowse(self):
-        filename = QtGui.QFileDialog.getOpenFileName()
+        filename = ""
+        # Fix for crash in X on Ubuntu 14.04
+        if sys.platform.startswith('linux'):
+            filename = QtGui.QFileDialog.getOpenFileName(options=QtGui.QFileDialog.DontUseNativeDialog)
+        else:
+            filename = QtGui.QFileDialog.getOpenFileName()
         if filename != "":
             self.imagePathLine.setText(filename)
         pass