test Person.parser() for conditionals around dictionary element is not None

[jackdotwa]

the offending lines:
if key in self._parsed_dict and self._parsed_dict[key] is not None:

    log.warning('the key {} is already in dict for {}'.format(key, identifier)) 
    # run all the way to the next 1 
    while self.current() and (self.current().split(' ')[0] != '1'): 
        self.next() 

[jackdotwa]

This is currently under review in feature/data_verification branch