1.1.2 / 2017-09-23

- perf: improve header token parsing speed

# 1.1.1 / 2017-03-20

- perf: hoist regular expression

# 1.1.0 / 2015-09-29

- Only accept valid field names in the `field` argument
  - Ensures the resulting string is a valid HTTP header value

# 1.0.1 / 2015-07-08

- Fix setting empty header from empty `field`
- perf: enable strict mode
- perf: remove argument reassignments

# 1.0.0 / 2014-08-10

- Accept valid `Vary` header string as `field`
- Add `vary.append` for low-level string manipulation
- Move to `jshttp` orgainzation

# 0.1.0 / 2014-06-05

- Support array of fields to set

# 0.0.0 / 2014-06-04

- Initial release