Add changelog for 1.7.0

Author: SpaceK33z

CHANGELOG.md

@@ -0,0 +1,8 @@
+# 1.7.0 (2016-09-10)
+
+- Add `reporter` option for custom logs ([#91](https://github.com/webpack/webpack-dev-middleware/pull/91)).
+- Add `serverSideRender` option to help support server-side rendering ([#118](https://github.com/webpack/webpack-dev-middleware/pull/118)).
+- Set `statusCode` to 200 for served files ([#94](https://github.com/webpack/webpack-dev-middleware/pull/94)).
+- Fix `waitUntilValid` callback always being called immediately when using MultiCompiler ([#100](https://github.com/webpack/webpack-dev-middleware/pull/100)).
+- Fix range support not working ([#116](https://github.com/webpack/webpack-dev-middleware/pull/116)).
+- Only use middleware for GET requests ([#96](https://github.com/webpack/webpack-dev-middleware/pull/96)).