tests and fixes in tljh-config

[minrk]

• add remove-item to cli
• fix setting non-string values (int, bool, float)
• show help when no action is given
• test coverage for cli

[yuvipanda]

Awesome, thanks @minrk!!!

[chmendoza]

Hi there!

I am trying to use this to delete a user from cli:

sudo tljh-config remove-item users.admin mendoza
sudo tljh-config reload

after I do that, this is the content of /opt/tljh/config/config.yaml:

users:
  admin: []

However, I can still log as mendoza. In addition, there are other users that I created through the web interface that are not showing up on the config.yaml file. See this screenshot (after executing the above commands):

BTW, I am deleting the user to then creating it again, as a workaround to reset the password :)