Comments + New user function

Added functionality to add new users.

Known bugs:

* Adds new user, but note that some text formats add a new line which
breaks the app. I’d fix this but realistically we’ll be throwing a db
behind it anyway.

* Once a new user is added there’s an option to start over. This
doesn’t work. I’ll fix it later.
Merge pull request #2 from projectkevin/master

Comments + New user function