Fix dev dependencies to modern format

Automitigate hub ip changes, use Poetry for dev env management, fix m…

…b tests (#19)

* Surface error when switching to remote due to issues

* Bump version: 0.2.28 → 0.2.29

* Run tests with live_hub on a config copy instead of live

* Switch to Poetry for development management

* Actually ensure hub state might be live before we copy it

* Switch Travis to use poetry

* Detect & handle changed hub ip address

Fixes #17

Also adds a new cloud.update_hubs() call that can be used to refresh hub
details.

* Print more state for online_device fixture

Failed in Travis but not locally, more data to hunt it down

* Ensure hub is actually live in fixture live_hub

Also, pinging the hub state ensures it gets flipped to remote if that's
necessary

* Attempt using a newer nodejs

Focal comes with 10.0 which is no longer supported

* Actually, let's use the active LTS instead

* Mark ip change test as xfail for remote

* Increase coverage to atone for untestable local bits

* Also test cloud resetState

* Test cloud refreshing also live

* Also test cloud._need_cloud_token

* Get rid of setup.py, highly deprecated

Make coverage & tox happy without it

* Make the refresh test a bit more robust

* Ensure we're copying live_cloud from live config

Bump version: 0.2.30 → 0.2.31

Bump version: 0.2.29 → 0.2.30

Merge branch 'master' into devel

Merge branch 'devel' for release of v0.2.14

Merge branch 'devel' for publishing.

Merge branch 'devel' for release as v0.2.12

Merge branch 'devel'

Merge branch 'devel'