sync with official debian

webkitgtk-2.0.3
webkitgtk 2.1.4-1 for armhf
more configuration flags
only gtk+-3.0 and webkit2
control: gobject-introspection dependency
use JavaScriptCore instead of JSCore
hack: remove *.symbols

We ought to update them, but I don't know how to do it right now.

The fastest solution is just to ignore them.
control: libgudev-1.0-dev is not required
hack: no patches please
rules: revert some changes for armhf
rules: no glx for arm, please
rules: avoid check non-source files
rules: explicity enable jit