Constrain address detection to a certain place

[cds-amal]

Assume a borough when processing an input. This would be useful for processing documents where addresses are presumed known.

$ adparse.py  --borough Manhattan "14 1st Ave" --geo 
{'@context': 'http://schema.org', 'geo': {'latitude': 40.72344697565176, '@type': 'GeoCoordinates', 'longitude': -73.98828573037261}, '@type': 'Place', 'address': {'addressLocality': 'New York City', 'addressRegion': 'NY', 'streetAddress': u'14 1 AVENUE', 'postalCode': u'10009', 'borough': u'MANHATTAN', '@type': 'PostalAddress'}}

For example, minutes from Council Board 3: dealing with Manhattan locations.

Spiegel (Spiegel Inc), 26 1st Ave @ E 2nd St (unenclosed)
Swiss White International LLC, 177 Chrystie St @ Rivington St (op)
Chinese Tuxedo, 5 Doyers St btwn Pell St & Bowery (op)
108 E 4th St (wb)
Hou Yi Spicy Inc, 97 2nd Ave (wb)

These addresses can be parsed if we presume they are from manhattan.