Ticket 349 - nsViewFilter syntax issue in 389DS 1.2.5
    
    Bug Description:  current nsViewFilter syntax is IA5string, this is too restictive
    			for definition of views in DIT using international chareacters
    
    Fix Description:   change syntax of nsViewFilter to directory string
    			NOTE: there could be deployments relying on the case sensitivity of IA5string
    			      although not very likely. Probably need to doc in RN
    
    https://fedorahosted.org/389/ticket/349
    
    Reviewed by: ?