- http://bugzilla.opendarwin.org/show_bug.cgi?id=9572
        Add application/xhtml+xml to the Accept header

        * WebView/WebFrame.m:
        (-[WebFrame _addExtraFieldsToRequest:mainResource:alwaysFromRequest:]): Add an Accept header
        to main resource requests.
        * English.lproj/StringsNotToBeLocalized.txt: Added new strings.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@15246 268f45cc-cd09-0410-ab3c-d52691b4dbfc