Identify administrators easily

[kuquay]

Issue
Right now admins look all the same as any other user. Any user can nick themselves as the preferred username of an admin, such as ishan.
It should be imperative that administrators can be distinguished easily from normal users. The only method right now is to go to the repository and check admins.json, but that will not work if this software is deployed elsewhere, on top of being clumsy and annoying.

There are three suggested solutions to this problem:

1. Introduce an admins or operators command, which lists the IDs of all admins (any user's ID is public), not unlike lsbans. This is easy to implement although tedious to sort through, especially if there are a lot of admins.
2. List admins seperately when running users, allowing a member to quickly check if any given user is an administrator.
3. Give admins a special badge next to their name. This solution may not be desired due to design goals, however.

[Arkaeriit]

I think the third proposition would be a tad annoying but the two first one are great. I will make a PR to implement them.

[quackduck]

I really like idea 2

[Arkaeriit]

I made the PR #90 for this.

[Arkaeriit]

Ishan merged the PR so we can close the issue.