4.4.0

CHANGES:

• Add support for Reason's JSX syntax with a new tyxml-jsx package
  (#254 by Joris Giovannangeli and Gabriel Radanne
  with help from Ulrik Strid and Louis Roché)
• Modernize the handling of toplevel printers for utop.
  (Gabriel Radanne)

Elements and attributes

• Add allowfullscreen, allowpaymentrequest, referrerpolicy attributes
  (#242 by Thibault Suzanne)

• Allow crossorigin attribute for script element
  (#243 by Thibault Suzanne)

• Greatly improved support of whitespaces in the PPX
  (#225 by Jules Aguillon)

• Add preliminary support for ARIA attributes
  (#253 by Stéphane Legrand and Gabriel Radanne)

• Add template element
  (#239 Stéphane Legrand)

• Several bug fixes for types and PPX