Dream 1.0.0~alpha4

Additions

• Dream.set_status (67e91f1).
• Automatically close streams (Dream.stream) and WebSockets (Dream.websocket) unless ~close:false is passed (cfacc84, prompted by Yawar Amin).

Bugs fixed

• Dream.form should accept all Content-Types that have the right prefix (#203, Yawar Amin).
• Dream.set_cookie should use SameSite=Lax by default (#190, reported by Chas Emerick, Andrey Popp).
• Depend on camlp-streams for OCaml 5.00.0 compatibility (#210, Patrick Ferris).

Changes

• Improve Content-Length and Transfer-Encoding handling (2621045).

Removals

• Dream.content_length middleware (2621045).
• Dream.lowercase_headers middleware (5f50acf).
• Dream.version accessor (2162ec7).

Docs

• Catch up routers in some of the examples with Dream alpha3 (#205, Thomas Haessle).
• Update docs for Dream.form_result constructor `Expired (#206, Yawar Amin).
• Fix remaining mentions of ~secret (#207, reported by Tuomas Lukka).