Release version 1.6.0 of fierce

1.5.0 release

1.4.0 release

1.3.0 release

1.2.2 release

1.2.1 release

Gracefully handle zone transfer DNS errors

Update README with directory change

Add subdomain lists to MANIFEST file for source distribution

The dnspython package no longer distinguishes from Python 2 and 3 in …

…its name