service.rb in libis-services-1.0.10

- old
+ new

@@ -8,10 +8,11 @@
 
 require 'libis/tools/mets_file'
 
 require 'csv'
 require 'write_xlsx'
-require 'backports'
+require 'libis/tools/extend/hash'
+require 'libis/tools/extend/string'
 require 'awesome_print'
 
 require_relative '../service_error'
 
 module Libis