add a changelog

Author: willnorris

CHANGELOG.md

@@ -0,0 +1,55 @@
+# Changelog
+
+This file contains all notable changes to
+[imageproxy](https://github.com/willnorris/imageproxy).  The format is based on
+[Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project
+adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+## [0.8.0] (2019-03-21)
+
+### Added
+ - added support for restricting proxied URLs [based on Content-Type
+   headers](https://github.com/willnorris/imageproxy#allowed-content-type-list)
+   ([#141](https://github.com/willnorris/imageproxy/pull/141),
+   [ccbrown](https://github.com/ccbrown))
+ - added ability to [deny requests](https://github.com/willnorris/imageproxy#allowed-and-denied-hosts-list)
+   for certain remote hosts
+   ([#85](https://github.com/willnorris/imageproxy/pull/85),
+   [geriljaSA](https://github.com/geriljaSA))
+ - added `userAgent` flag to specify a custom user agent when fetching images
+   ([#83](https://github.com/willnorris/imageproxy/pull/83),
+   [huguesalary](https://github.com/huguesalary))
+ - added support for [s3 compatible](https://github.com/willnorris/imageproxy#cache)
+   storage providers
+   ([#147](https://github.com/willnorris/imageproxy/pull/147),
+   [ruledio](https://github.com/ruledio))
+ - log URL when image transform fails for easier debugging
+   ([#149](https://github.com/willnorris/imageproxy/pull/149),
+   [daohoangson](https://github.com/daohoangson))
+ - added support for building imageproxy as a [go module](https://golang.org/wiki/Modules).
+   A future version will remove vendored dependencies, at which point building
+   as a module will be the only supported method of building imageproxy.
+
+### Changed
+ - when a remote URL is denied, return a generic error message that does not specify exactly why it failed
+   ([7e19b5c](https://github.com/willnorris/imageproxy/commit/7e19b5c))
+
+### Deprecated
+ - `whitelist` flag and `Proxy.Whitelist` struct field renamed to `allowHosts`
+   and `Proxy.AllowHosts`.  Old values are still supported, but will be removed
+   in a future release.
+
+### Fixed
+ - fixed tcp_mem resource leak on 304 responses
+   ([#153](https://github.com/willnorris/imageproxy/pull/153),
+   [Micr0mega](https://github.com/Micr0mega))
+
+## Older Versions
+
+Additional changelog entries for older versions to be written as time permits.
+Contributions are welcome.
+
+[Unreleased]: https://github.com/willnorris/imageproxy/compare/v0.8.0...HEAD
+[0.8.0]: https://github.com/willnorris/imageproxy/compare/v0.7.0...v0.8.0