[arch-dev-public] Updating webkitgtk2 to 2.2.5 (or later)

[Jan Alexander Steffens]

I would like to update our GTK2 build of libwebkit. Having a seriously
outdated browser engine with who knows as many bugs and
vulnerabilities isn't quite optimal.

So far we've kept it at version 1.10.2 because that's the last version
still supporting GStreamer 0.10. Having both GStreamer 0.10 and 1.0 in
the same process is not possible.

For the update to happen, packages using both webkitgtk2 and
gstreamer0.10 would have to be patched OR removed. As far as I can
tell this affects the following packages:

banshee (Fedora has a patch)
emesene
miro

I intend to go ahead this weekend.