make stop-mycroft.sh also stop if skills are started from other module.

Upgrade to latest pip version

This will provide timezone info as well as now reference to the
extracted sentences.

Add tzinfo to extracted datetime

- Move to test directory
- Make runable module
- Add some waiting to give Wakeword engine time to report back
- Disable beep on found wakeword
- Update gitignore directory

Now the test files for false negatives are simply put in the
data/with_wake_word folder

Make audio accuracy test runnable again

Add a cl tool to start mycroft to listen: mycroft-listen

Alternative triggers. #1357 - Added feature to activate via command line
This can be triggered in most desktop enviroments via short cuts


====  Documentation Notes ====
Activates the mycroft listening feature.

 On branch feature/mycroft-listen_cli_tool
 Changes to be committed:
	new file:   mycroft-listen

- Move code out of __init__.py
- Correct spacing of docstrings
- Make use of ' uniform
- Add module level docstring

The DialogLoader class has been replaced by the simpler load_dialogs
function.

Refactor mycroft.dialog

Common play skill tests

Tests for CommonQuerySkill

intent api

Make message.response keep source/dest info

Convert hash sign comments to double slash (# -> //)

Sets up a thread with a queue interface to handle the upload of timing
information to the backend.

Previously this was done in the emitter thread after a skill or
subsystem had delivered their content to avoid slowing down the system.
However massively parallell calls like the "mycroft.stop" message would
starve the threadpool casuing the upload time to limit the execution
speed of these.

Feature/timing out of thread

… it.

Skill tester used a "mocked" skill test class overriding some methods.
This is no longer necessary since a normal dict will work just as well.

remove deprecated Settings class

Bump the version to the new 20.02 range

Added a "save_path" configuration for saved wake words and utterances.

Remove debug logging of stop message context