* Moved the spinner initialization to the base class.
* Got rid of the base class, it complicated testing.
Now it lives on as a utils file. Should make it easier to test the CLI.
* Added a spec file for the ListCommand.
* Added tests for all CLI commands.
* Update some old tests.
Added missing cases and tests.
Most of these are kind useless but I hope I won't have to touch them
again.
--as-json outputs the response as json, this allows you to use tools
like jq on the output which is nice.
--quiet makes it so no output is printed. I added this in case you are
looping Beau and don't want to see the output of every single request.
Example: `seq 10 | xargs -I{} beau request hi --quiet`.
David Diaz