WebKitGTK+ 2.3.5 released!

This is a development release leading toward 2.4 series.

Add API to allow setting a multiple web process model.
Add API to pass initialization user data from the UI process to the web extensions.
Implement languages support with network process.
Implement custom URI schemes with network process.
Disable MemoryCache when the DOCUMENT_VIEWER cache model is set.
Expose aria-describedby with ATK_RELATION_DESCRIBED_BY.
Fix a bug that prevented from entering fullscreen again in HTML5 videos after fullscreen was left with ESC.
Set playback rate when pipeline is not ready in GStreamer media backend.
Fix a lockup when playing Icecast radio in GStreamer media backend.
Fix a web process crash when a download is cancelled.
Fix several crashes when printing via JavaScript.

Thanks to all the contributors who made possible this release.