add missing libs and update settings to new versions

settings/bibliography-settings.el

@@ -23,6 +23,10 @@
   :load-path (lambda() (concat config-dir "lisp/biblio"))
   :defer t)  ;; used by org-ref
 
+(use-package citeproc
+  :load-path (lambda() (concat config-dir "lisp/citeproc"))
+  :defer t)  ;; used by org-ref
+
 (use-package org-ref  ;; used with some preamble defs and \printbibliography (biblatex/biber, no html export), see also ox-bibtex
   :load-path (lambda() (concat config-dir "lisp/org-ref"))
   :after (org)