Adding code-word NONE to variable names to be excluded from filtering; previously, literal value NONE would be sought

pythonScripts/config.py

@@ -50,7 +50,8 @@ def getFilter(xconfig):
    for f in fields:
       try:
          row[f]=xconfig[f]
-         qfilter.append(fields[f](row,xconfig))
+         if xconfig[f]!='NONE':
+            qfilter.append(fields[f](row,xconfig))
       except KeyError:
          continue
    return qfilter