[webkit-dev] Renamed KURL to URL

[Darin Adler]

I just did one of the older maintenance tasks tracked in bugs.webkit.org: <https://bugs.webkit.org/show_bug.cgi?id=16214> rename KURL to URL, in <http://trac.webkit.org/changeset/156550>.

This might require some tweaks for the export files (.exp.in and .def) for platforms like iOS and Windows to get them building again, but I think that other than that it is in good shape.

-- Darin