User managment

[Silther]

I have some questions about user management.
How Can I delete or reset them?
When I set habittrove up I create some random habits and "completed" now I have them in the history without being able to remove them.

[dohsimpson]

not supported at the moment. You will have to do it manaully, but it should be a pretty easy process by grepping the user id in the json files, see #93