patch.bib now checks if .bib files were updated and skips them if not. This allows running it before every compile without resulting in a re run of biber due to the touched .bib file
patch.bib now checks if .bib files were updated and skips them if not. This allows running it before every compile without resulting in a re run of biber due to the touched .bib file

closes #1

jan-glx/patch.mendeley.bib.pl