This is a big release that adds new functionality and resolves #159, an outstanding issue from this summer.

Here’s the complete list:

• Reverts the changes from #126, subsequently released in version 4.3.0.
• Resolves #159.
• Adds support for ES6 Modules, thanks to @anajavi. This enables scope hosting on WebPack 3, saving a space and increasing performance.
• Adds support for custom separators on action types, thanks to @roboslone. Now your actions can be customized to, for example, FOO/FULFILLED or FOO-FULLFILLED instead of FOO_FULFILLED.
• Updates to WebPack 2, thanks to @GeKorm.
• Changes UMD paths to dist/umd/redux-promise-middleware.js and dist/umd/redux-promise-middleware.min.js.