v0.20.0

• bump mozjs to 140
• switch from quickjs to quickjs-ng
• Added color "default" in colors settings (\e[39m and \e[49m sequences)
• support for SVG #423
• infinite loop in mailcap code #425
• Use /usr/bin/env to determine awk interpreter path for awk example scripts #426
• skip DNS lookup for local files which have empty hostname #428
• check declaration of fgets_unlocked for bionic libc #429
• fix parallel build race #431
• added document.browse.sorting_type (and let sort "numerically", for example kernel versions)
• increase max number of concurrent connections
• extend document.browse.images.display_style, adding value -1 (no text)
• apply libcss twice (similar to elinks css implementation)
• refresh-view, set-mark, goto-mark and onload-oneshot actions for exmode #220
• back to smb based on smbclient binary