Ticket 48449 - Import readNSState from richm's repo
    
    Bug Description:  We reference readnsstate in a number of documents. We should
    include it in the repo
    
    Fix Description:  import and add readnsstate.py
    
    https://fedorahosted.org/389/ticket/48449
    
    Author: wibrown
    
    Review by: nhosoi, vashirov (Thanks!)