Update files for the schema compatibility plugin and RFC4876 profiles
    
    Also handle syntax errors a bit more gracefully and allow the updater to
    work on more than one file at a time.
    
    Adjust to new config.py and use a custom exception class for syntax errors.
    
    Also fix a error in parsing the separate files
    
    Include slapi-nis in Requires
    
    Includes work provided by Martin Nagy
    
    460055