Workaround for this exception being raised during download:

	Workaround for this exception being raised during download:
	[WebDownload connection:willStopBufferingData:]: selector not recognized

        Reviewed by john.

        * Misc.subproj/WebDownload.m:
        (-[WebDownload connection:willStopBufferingData:]): implement this method so no exception is raised. It is a bug in Foundation that this method is being called, but it's too late to fix Foundation since it has already been submitted this week. This workaround will prevent any problems from affecting users.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@8163 268f45cc-cd09-0410-ab3c-d52691b4dbfc