Update config.ini

Example/default config uses wrong key: "world" is unrecognized, "ic-world" is intended.

config/vufind/config.ini

@@ -398,11 +398,11 @@ authors         = Wikipedia
 ; http://code.google.com/apis/books/branding.html before using Google Book Search.
 ; previews       = Google,OpenLibrary,HathiTrust
 
-; Possible HathiRights options = pd,ic,opb,orph,und,umall,world,nobody,pdus,cc-by,cc-by-nd,
-; cc-by-nc-nd,cc-by-nc,cc-by-nc-sa,cc-by-sa,orphcand,cc-zero,und-world
-; Default is "pd,world" if unset here.
+; Possible HathiRights options = pd,ic,op,orph,und,umall,ic-world,nobody,pdus,cc-by,cc-by-nd,
+; cc-by-nc-nd,cc-by-nc,cc-by-nc-sa,cc-by-sa,orphcand,cc-zero,und-world,icus
+; Default is "pd,ic-world" if unset here.
 ; See www.hathitrust.org/rights_database#Attributes for full details
-;HathiRights    = pd,world,cc-by,cc-by-nd,cc-by-nc-nd,cc-by-nc,cc-by-nc-sa,cc-by-sa,cc-zero,und-world
+;HathiRights    = pd,ic-world,cc-by,cc-by-nd,cc-by-nc-nd,cc-by-nc,cc-by-nc-sa,cc-by-sa,cc-zero,und-world
 
 ; Possible GoogleBooks options full,partial,noview 
 ; Default is "full,partial" if unset here.