Stop calling deprecated method

[sylwit]

To get rid of this warning:

UserWarning: IPASN._parse_fields_dns() has been deprecated and will be removed. You should now use IPASN.parse_fields_dns().

[coveralls]

Coverage decreased (-0.07%) to 99.932% when pulling 75def04 on sylwit:patch-1 into ad6cbc6 on secynic:master.

[coveralls]

Coverage decreased (-0.07%) to 99.932% when pulling 75def04 on sylwit:patch-1 into ad6cbc6 on secynic:master.

[sylwit]

and tests are not mocked ?
ipwhois.experimental: DEBUG: ASN bulk query socket error: [Errno 110] Connection timed out

[pmuller]

_parse_fields_dns is not the only deprecated method called by lookup(). You should replace calls toward _parse_fields_*().

[secynic]

@sylwit There are offline (mocked) tests, and online. Online tests are also enabled on Travis due to the inconsistency in the various RIR services (it helps catch issues last minute, without re-running the tests locally).

I can't accept this PR for a couple reasons:

• You need to merge to dev, not master. See the contributor guide: http://ipwhois.readthedocs.io/en/latest/CONTRIBUTING.html#gitflow-model
• This doesn't fix all of the deprecation bugs (not a huge deal, but might as well get them all in one go)

Check out my response on #203 for a temporary workaround.