refactor: apply webpack-defaults (#41)

 - Applies webpack-defaults upgrades
 - Converts tests over to Jest
 - Updates to es6 syntax w/ ES Modules
 - Adds a commonjs proxy to main

BREAKING CHANGE: Enforces a minimum NodeJS version of `4.3` via engines & drops support for Webpack v1.x.

.babelrc

@@ -0,0 +1,35 @@
+{
+  "presets": [
+    [
+      "env",
+      {
+        "useBuiltIns": true,
+        "targets": {
+          "node": 4.3
+        },
+        "exclude": [
+          "transform-async-to-generator",
+          "transform-regenerator"
+        ]
+      }
+    ]
+  ],
+  "plugins": [
+    [
+      "transform-object-rest-spread",
+      {
+        "useBuiltIns": true
+      }
+    ]
+  ],
+  "env": {
+    "test": {
+      "presets": [
+        "env"
+      ],
+      "plugins": [
+        "transform-object-rest-spread"
+      ]
+    }
+  }
+}

.editorconfig

@@ -1,5 +1,14 @@
+# editorconfig.org
 root = true
 
-[*.js]
-indent_style=tab
-trim_trailing_whitespace=true
+[*]
+charset = utf-8
+indent_style = space
+indent_size = 2
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[.md]
+insert_final_newline = false
+trim_trailing_whitespace = false

.eslintignore

@@ -0,0 +1,2 @@
+/node_modules
+/dist

.eslintrc

@@ -0,0 +1,14 @@
+{
+  "extends": "webpack",
+  "rules": {
+    "import/no-unresolved": 0,
+    "import/extensions": 0,
+    "no-plusplus": 1,
+    "consistent-return": 1,
+    "no-multi-assign": 1,
+    "no-param-reassign": 1,
+    "prefer-destructuring": 1,
+    "no-nested-ternary": 1,
+    "prefer-rest-params": 1
+  }
+}

.gitattributes

@@ -0,0 +1,3 @@
+yarn.lock -diff
+* text=auto
+bin/* eol=lf

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,5 @@
+1. Check the version of package you are using. If it's not the newest version, update and try again (see changelog while updating!).
+2. If the issue is still there, write a minimal project showing the problem and expected output.
+3. Link to the project and mention Node version and OS in your report.
+
+**IMPORTANT! You should use [Stack Overflow](https://stackoverflow.com/) for support related questions.**

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,5 @@
+<!--
+1. [Read and sign the CLA](https://cla.js.foundation/webpack/webpack.js.org). This needs to be done only once. PRs that haven't signed it won't be accepted.
+2. Check out the [development guide](https://webpack.js.org/development/) for the API and development guidelines.
+3. Read through the PR diff carefully as sometimes this can reveal issues. The work will be reviewed, but this can save some effort.
+-->

.gitignore

@@ -0,0 +1,16 @@
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+.eslintcache
+/coverage
+/dist
+/local
+/reports
+/node_modules
+.DS_Store
+Thumbs.db
+.idea
+.vscode
+*.sublime-project
+*.sublime-workspace

.travis.yml

@@ -0,0 +1,32 @@
+sudo: false
+language: node_js
+branches:
+  only:
+    - master
+matrix:
+  fast_finish: true
+  include:
+    - os: linux
+      node_js: '7'
+      env: WEBPACK_VERSION="2.2.0" JOB_PART=lint
+    - os: linux
+      node_js: '4.3'
+      env: WEBPACK_VERSION="2.2.0" JOB_PART=test
+    - os: linux
+      node_js: '6'
+      env: WEBPACK_VERSION="2.2.0" JOB_PART=test
+    - os: linux
+      node_js: '7'
+      env: WEBPACK_VERSION="2.2.0" JOB_PART=coverage
+before_install:
+  - nvm --version
+  - node --version
+before_script:
+  - |-
+    if [ "$WEBPACK_VERSION" ]; then
+      yarn add webpack@^$WEBPACK_VERSION
+    fi
+script:
+  - 'yarn run travis:$JOB_PART'
+after_success:
+  - 'bash <(curl -s https://codecov.io/bash)'

CHANGELOG.md

@@ -0,0 +1,11 @@
+# Change Log
+
+All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
+
+x.x.x / <year>-<month>-<day>
+==================
+
+  * Bug fix -
+  * Feature -
+  * Chore -
+  * Docs -

LICENSE

@@ -1,4 +1,3 @@
-
 Copyright JS Foundation and other contributors
 
 Permission is hereby granted, free of charge, to any person obtaining

README.md

@@ -1,5 +1,7 @@
 [![npm][npm]][npm-url]
 [![deps][deps]][deps-url]
+[![test][test]][test-url]
+[![coverage][cover]][cover-url]
 [![chat][chat]][chat-url]
 
 <div align="center">
@@ -69,7 +71,6 @@ plugins: [
   <tbody>
 </table>
 
-
 [npm]: https://img.shields.io/npm/v/i18n-webpack-plugin.svg
 [npm-url]: https://npmjs.com/package/i18n-webpack-plugin
 
@@ -78,3 +79,9 @@ plugins: [
 
 [chat]: https://img.shields.io/badge/gitter-webpack%2Fwebpack-brightgreen.svg
 [chat-url]: https://gitter.im/webpack/webpack
+
+[test]: http://img.shields.io/travis/webpack-contrib/i18n-webpack-plugin.svg
+[test-url]: https://travis-ci.org/webpack-contrib/i18n-webpack-plugin
+
+[cover]: https://codecov.io/gh/webpack-contrib/i18n-webpack-plugin/branch/master/graph/badge.svg
+[cover-url]: https://codecov.io/gh/webpack-contrib/i18n-webpack-plugin