Log Message:
poppler*: update to 0.86.0

Release 0.86.0:
        core:
         * Fix link content exfiltration attack
         * Splash: Implement gouraudTriangleShadedFill for some non parametrized \ 
shadings. Issue #881
         * Fix case unsensitive search for Old Hungarian, Warang Citi, \ 
Medefaidrin and Adlam
         * Internal code improvements

        glib:
         * Automatic handle of page's cropbox on annots. Issue #129
         * Fix memory leak if poppler_document_new_from_file fails
         * Minor speed optimization on poppler_page_get_annot_mapping

         utils:
         * pdfdetach: add 'savefile' option
         * pdftoppm/pdftocairo: Fix more odd/even mismatch

        qt5:
         * Fix loading from iodevice

Release 0.85.0:
        core:
         * Fix case unsensitive search for Deseret and Osage. Issue #853
         * Fix crash in unicodeToAscii7
         * CairoOutputDev: make initialisation thread-safe
         * Fix crash on broken files. Issues #869, #870
         * Internal code improvements

        utils:
         * pdftoppm/pdftocairo: Fix -e/-o printing the wrong pages. Issue #873
         * pdftohtml: Fix issue with the font size sometimes being huge

        qt5:
         * Fix FormField::name encoding
         * Accept UTF-16 uiNames for form fields
         * Fix search for "complex" characters
         * Allow to load document from QIODevice

        glib:
         * make the frontend initialization thread safe.