v0.8.0

Bug Fixes

• headers: remove charset from ContentType::json() convenience method (ec568e9a)
• net: fix the typo in set_write_timeout (7c76fff3)

Features

• client: Implement Debug for Client (8c7ef7fd)
• status: add HTTP statuses 421 and 451 (93fd5a87)

Breaking Changes

• mime 0.2 depends on serde 0.7, so any instances of
  using older versions of serde will need to upgrade.

  (146df53c)