3.5.2
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* Platform Demos
 - Updates from Tiffany Antopolski, Marta Casetti, Taryn Fox, Monica Kochofar, Ryan Lortie
 - Updated translations:
  es (Daniel Mustieles)
  fr (Bruno Brouard)

* Human Interface Guidelines
 - Updated translations:
 es (Gladys Guerrero-Lozano)

* Accessibility Development Guide
 - Removed references to these non-existant figures (Jasper Lievisse Adriaanse)