New Release. PR from RouquinBlanc

Release. Improved CLI. Added command line executable. Thanks to https…

…:https://github.com/RouquinBlanc for PR

Improved result checking (Thanks to Jonanthan Martin).

New release thanks to Jonathan Martin (https://github.com/RouquinBlanc)…

…. Lots of fixes and improvements.

Release dur to PR from joshbuddy

Reading for PyPI

Zeroconf now uses ensure_future.

ZeroconfServiceTypes could not be imported.

Adds a tag so that we can put this on PyPI.

Version 0.19.1