firefox-legacy-1.16.4.18

Change

• Fix a bug that in certain conditions prevents updating assets
• Incorporate redirect resources into the local repo and update the scriptlets
  • Add missing scriplets:
    • nosiif.js / no-setInterval-if.js
    • nostif.js / no-setTimeout-if.js
    • raf-if.js / requestAnimationFrame-if.js
    • json-prune.js
  • Update existing scriptlets:
    • set.js / set-constant.js
    • acis.js / abort-current-inline-script.js
  • Update filter syntax converter
• Apply filter syntax converter to RU AdList Counters

Note: The release notes are created/maintained by @JustOff.