reverse_name: raise exception on error status
wdns.{pxi,pyx}: Removed magic numbers
wdns.pyx: moved rdata_to_str to its own function
wdns.pyx: added length check to domain_to_str
wdns.pyx: Documentation
Makefile: delete
COPYRIGHT: 2014
Merge branch 'master' of git://github.com/hstern/pywdns into hstern-master