user_db vs. users_dir

[jvasile]

The config file has settings for both user_db and users_dir. What is the difference between the two? This should either be documented or the settings should be merged. Right now they are set to the same thing.

[tomgalloway]

The user changes I've been making are just using the db in user_db folder. I think the users_dir was an older implementation for text file list of users and can be removed.

[jvasile]

Yes, I think the TODO here is to get rid of the users_dir references in the code and then remove it from the config.