def replace( other_array )
      if !other_array.nil?
        converted = other_array.map { |url| convert_remote_url( url ) }
        super( converted )
      else
        super( nil )  
      end
    end
def replace( other_array )
      if !other_array.nil?
        converted = other_array.map { |url| convert_remote_url( url ) }
        super( converted )
      else
        super( nil )  
      end
    end
Replaces the contents of self with the contents of other_array, truncating or expanding if necessary. The contents of other_array
 is converted standardized URL Hashes.