code: def hasFeature(featureList, feature):
      
      for f in featureList:
          if f[0] == feature or Features[f[0]] == feature:
              return f[1]
docs: return the controlCode for a feature or None
  
      @param feature:     feature to look for
      @param featureList: feature list as returned by L{getFeatureRequest()}
  
      @return: feature value or None