**** 0.03 May 13, 2009
Fixed handling of third level domains by lookup(). The lookup() method now
uses a query for 'any' records (instead of 'ns') to see if a domain exists.
Reported by Ralph Bullet.
**** 0.02 May 6, 2009
Fixed processing of non-terminal NAPTR records and handling of
get_services() without any parameters. Patch by Henri Asseily.
Fixed the total lack of a test suite; added some basic tests.
**** 0.01 April 9, 2009
Initial release.