'called to parse command-line arguments and cli/config file options
if options dict contains \'all\' or the decoder name as a key
class members will be updated from value'

def parseArgs(self, args, options={}):

    self.args = args
    if ('all' in options):
        self.parseOptions(options['all'])
    if (self.name in options):
        self.parseOptions(options[self.name])
