Support ESM, ES6, and start fixing JSDoc

Author: thelonious

.babelrc

@@ -0,0 +1,5 @@
+{
+    "presets": [
+        ["@babel/env"]
+    ]
+}

.eslintignore

@@ -1,3 +1,4 @@
 node_modules
+dist
 docs/jsdoc
 scratch

.eslintrc.js

@@ -3,23 +3,33 @@
 module.exports = {
     "env": {
         "browser": true,
-        "commonjs": true,
         "es6": true,
         "node": true,
         "mocha": true
     },
-    "extends": ["ash-nazg/sauron-node", "plugin:node/recommended-script"],
+    "extends": ["ash-nazg/sauron-node"],
     "parserOptions": {
-        "ecmaVersion": 2018
+        "ecmaVersion": 2018,
+        "sourceType": "module"
     },
     "settings": {
         "polyfills": [
-            "Error",
-            "Object.defineProperties",
-            "Object.defineProperty"
+            "console",
+            "Error"
         ]
     },
     "overrides": [
+        {
+            files: "docs/jsdoc-config.js",
+            globals: {
+                "module": "readonly"
+            },
+            rules: {
+                strict: "off",
+                "import/unambiguous": "off",
+                "import/no-commonjs": "off"
+            }
+        },
         {
             files: ["**/*.md"],
             rules: {
@@ -70,11 +80,7 @@ module.exports = {
         "require-unicode-regexp": "off",
         "yoda": "off",
         "valid-jsdoc": 0,
-        "import/unambiguous": 0,
-        "global-require": 0,
-        "import/no-commonjs": 0,
-        "consistent-this": "off",
         "unicorn/prefer-type-error": "off",
-        "node/shebang": "off"
+        "consistent-this": "off"
     }
 };

.npmignore

@@ -1,3 +1,4 @@
 docs/jsdoc
 test
 scratch
+rollup.config.js