Recognize pdf.less and use the style.css of the wrap plugin by default#325

Klap-in merged 2 commits intosplitbrain:mastersplitbrain/dokuwiki-plugin-dw2pdf:masterfrom

cosmocode:recognizePdfDotlesscosmocode/dokuwiki-plugin-dw2pdf:recognizePdfDotlessCopy head branch name to clipboard