WebKitGTK+ 2.17.1 released!

This is the first development release leading toward 2.18 series.

Switch to use new remote inspector infraestructure instead of legacy Web Sockets based one.
Add API to enable and handle Web Automation.
Load large images asynchronously off the main theead.
Use GtkFileChooserNative for open/save dialogs when available.
Make file chooser run as modal by default if possible.
Fix position of dropdown menus in Wayland.
Keep URI fragments after a server redirection.
Implement support for aria-haspopup and aria-autocomplete.
Implement aria-value support for focusable separators.
Fix playing of some live streams.

Thanks to all the contributors who made possible this release.