3.33.4
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* Update highlight.pack.js to 9.15.8, added awk and shell (Shaun McCance)
* Removed intltool and other build updates (Jeremy Bicha, Javier Jardón)
* Updated translations:
  es    (Daniel Mustieles)
  hu    (Balázs Úr)
  id    (Kukuh Syafaat)
  pl    (Piotr Drąg)
  pt_BR (Rafael Fontenelle)
  zh_CN (Mingcong Bai)