changed loading of filter options, now immediately either a error status message or a success message is displayed in the main window if the filter parameter could not be loaded or were loaded respectively

pylot/QtPyLoT.py

@@ -97,9 +97,14 @@ class MainWindow(QMainWindow):
         self.data.plotData(self.DataPlot)
 
     def updateFilterOptions(self):
+        try:
             self.filteroptions = [self.filterOptionsP
                                   if not self.seismicPhase == 'S'
                                   else self.filterOptionsS]
+        except e:
+            self.updateStatus('Error: %s' % e + ' ... no filteroptions loaded')
+        else:
+            self.updateStatus('Filteroptions succesfully loaded ...')
 
     def updateStatus(self, message):
         self.statusBar().showMessage(message, 5000)