What's new in the WebKitGTK 2.23.90 release?
============================================

  - Add a new setting to disable JavaScript elments from documents during parsing.
  - Add new API to expose JavaScriptCore options.
  - Add support for JPEG2000 images.
  - Add support for back/forward touchpad gesture.
  - Add support for pinch zoom on touchpad.
  - Use a scrolled window in alert dialogs to handle long contents.
  - Sleep disabler now inhibits idle when a "System" sleep disabler is requested.
  - Remove experimental sandboxing support, it's not yet ready for stable release.
  - Fix a web process deadlock when starting the remote inspector.
  - Fix a crash when browsing inspector:// URI without port set.
  - Fix several crashes and rendering issues.