title: How to create a read-only user for NEO4J 2.2
body: <p>Now I want to create a read-only user who can login the web browser and webadmin without the permission to modify the graph.
    I know there is <strong>read-only mode</strong> , but this will get the instance read-only, not very convenient for my bussiness requirement.</p>
  
  <p>My question is :</p>
  
  <p>1,if there is a configuration to add a  read-only user, how can I do this? I didn`t find this in documentation.
    2,If there is not, I would like to create a customized configuration for this, and where should I find the file store user,passowrd or authorization token? </p>
  
  <p>Could you give some suggestions? Any answer is appriciated!</p>