DOC: wrdrd.tools.domain: Add docstrings
CLN: wrdrd.tools.domain: lint
ENH: wrdrd.tools.domain: Add nameserver arg to nslookup
BLD: docs/conf.py: Add sphinx.ext.napoleon to extensions (sphinx >= 1.3)
DOC: wrdrd.tools.domain: Add docstrings
DOC,CLN: wrdrd.tools.stripsinglehtml: Add docstrings
CLN: wrdrd.tools.stripsinglehtml: lint
CLN: wrdrd.tools.stripsinglehtml: remove commented Google Sites code
DOC: wrdrd.tools.crawl: Add docstrings