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

def hasFeature(featureList, feature):
    """ 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
    """
    for f in featureList:
        if f[0] == feature or Features[f[0]] == feature:
            return f[1]