WebKitGTK 2.27.3 released!

This is a development release leading toward 2.28 series.

Add support for Pointer Lock API.
Improve performance when falling back to system fonts.
Stop using DBus for the remote inspector implementation to improve the performance of both WebDriver and remote inspector.
Implement support for new ARIA roles: code, strong, emphasis, generic.
Fix handling of content type with new custom protocols implementation.
Make image decoders fully thread safe.
Add support for get page source command in WebDriver.
Add support for network proxy capabilities in WebDriver.
Add support for new window command in WebDriver.
Fix several crashes and rendering issues.
Translation updates: Brazilian Portuguese, Ukrainian.

Thanks to all the contributors who made possible this release.