JERSEY-2124: HeaderValueException: Unable to parse "Accept-Language" header value es-419.

 - Allowing region code (numerical) instead of country code (alpha) in Accept-Language
   header value (addition to HTTP 1.1 spec).

Change-Id: Ifea89cd94f9a9bbca09e1a79ca4ce3b0a949af43
JERSEY-1660: CookiesParser.parseNewCookie should parse attributes case-insensitively.

 - Fix.
 - Supporting Expires, HttpOnly params for NewCookie (not sure why it hasn't been there before).
 - Test.

Change-Id: I5fb72e1f52826f179c7109beb8dcb6ae4889b0aa
Merge "JERSEY-2124: HeaderValueException: Unable to parse "Accept-Language" header value es-419."
Merge "JERSEY-1660: CookiesParser.parseNewCookie should parse attributes case-insensitively."