please add to documentation - disable setup after creation of first user

[zachvenice]

please add this to documentation for the app:

disable setup once you have created the first user with admin permissions!

i used your code to create a site and the user base grew very large. the line of code in the application controller that checks if there are any users: 'User.all.length'

created a huge lag on each page load.

so, you might want to document that this should be disabled after you've set up your administrator user.

[espen]

Thanks, I'll look into a better solution.