WebKitGTK+ 2.6.6 released!

This is a bug fix release in the stable 2.6 series.

Check TLS errors as soon as they are set in the SoupMessage to prevent any data from being sent to the server in case of invalid certificate.
Fix synchronous loads when maximum connection limits are reached.
Fix web timing calculations when loading resources from the disk cache.
Ensure WebKitFrame objects are released when the frame is destroyed.
Fix some transfer annotations used in GObject DOM bindings.
Clear the GObject DOM bindings internal cache when frames are destroyed or web view contents are updated.
Fix a crash viewing http://www.last.fm/.
Fix a crash due to empty drag image during drag and drop.
Fix rendering of drag and drop icon.
Resize the accelerating compositing window to a minimum size again after leaving accelerated compositing mode to save memory.
Fix a crash when loading a local file with webkit_web_view_load_alternate_html.
Fix rendering of scrollbars with GTK+ >= 3.16.
Fix the build with older versions of GStreamer.
Fix the build with CMake 3.2.
Fix the build for Linux/MIPS64EL.
Fix the build for HPPA.
Fix the build with recent versions of GLib that have GMutexLocker.
Fix the gtk-doc generation to appear in DevHelp.

Thanks to all the contributors who made possible this release.