3.4.1
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* Accessibility Development Guide
  - Updates from Jeremy Bicha
  - Updated translations:
    es    (Daniel Mustieles)
    fr    (Bruno Brouard)
* Integration Guide
  - Updated translations:
    fr    (Bruno Brouard)
* Platform Demos
  - Updates from Tiffany Antopolski, Taryn Fox, Ryan Lortie
  - Updated translations:
    es    (Daniel Mustieles)
* Platform Overview
  - Updates from Luc Pionchon
  - Updated translations:
    es    (Daniel Mustieles)
    fr    (Bruno Brouard)
    gl    (Fran Diéguez)
    ru    (Yuri Kozlov)