Bump version.

Add `azdev extension build` and `publish` commands. (Azure#61)

* Progress on publish commands.

* Update gitignore

* Finish azdev publish.

* Updates to work with configured defaults.

* Fix up extension flake8 file.

Azdev Fixes to work with Azure-CLI CI (Azure#36)

* Pin pytest version.

* Fix linter to use long or short formats. Remove --ci flag.

* Split out version checking from updating setup.py.

* Make azdev test run all tests by default. Improve FileNotFound handling.

* Fix Azure#14.

* CI fixes.

Remove "require_azure_cli" from extensions.