Slash-Quotted String in noCache header

[dboulay]

We are using the method:
getResponse().getCacheDirectives().add(CacheDirective.noCache("Set-Cookie"));
and the generated header is:
Cache-Control: no-cache=""Set-Cookie""

As you can see the second parameter is not correctly written.
After some investigations I thing the problem is somewhere in
org.restlet.engine.http.header.HeaderWriter.appendExtension which is not considering the value as a valid token (because the value contains double quotes).

[thboileau]

reading rfc 2616, this case concerns three header extensions ("Cache-Control" header and its "private" and "no-cache" directives, and "Warning" header and its "warn-date" extension).