Merge pull request #26 from diranged/master

Add pep8, pyflakes, unit and integration tests to setup.py

(Approved by @dfujiwara)
issue #28 - plain text/directory listing output on the get CLI
issue #28 - consistent var names to match the rest of the code
Merge pull request #29 from cmclaughlin/master

issue #28 - plain text/directory listing output on the get CLI
Merge branch 'master' of github.com:Nextdoor/ndserviceregistry into integration
Merge branch 'integration' into cli