Add Content-Disposition header to org.apache.http.HttpHeaders

[Frédéric Fays]

Hi,
Could you please add the Content-Disposition header, c.f. RFC 6266, to the
org.apache.http.HttpHeaders class, and update the Javadoc accordingly ?

Regards,

Frederic Fays

Ref. https://tools.ietf.org/html/rfc6266