Allow for nil titles and links in filtering.
Allow for nil titles and links in filtering.

emacsmirror/elfeed,holomorph/elfeed,holomorph/elfeed,jinnovation/elfeed,skeeto/elfeed,seblemaguer/elfeed,abo-abo/elfeed,seblemaguer/elfeed,jinnovation/elfeed,daimrod/elfeed,algernon/elfeed,emacsmirror/elfeed,algernon/elfeed,daimrod/elfeed,skeeto/elfeed