feat: compile a modules directory

BREAKING CHANGE: lib directory has been renamed cjs

.gitignore

@@ -1,4 +1,5 @@
+cjs/
 dist/
-lib/
+modules/
 node_modules/
 npm-debug.log

package.json

@@ -14,6 +14,19 @@
           "es2015"
         ]
       },
+      "modules": {
+        "plugins": [
+          "transform-object-rest-spread"
+        ],
+        "presets": [
+          [
+            "es2015",
+            {
+              "modules": false
+            }
+          ]
+        ]
+      },
       "test": {
         "plugins": [
           "transform-object-rest-spread"
@@ -88,12 +101,13 @@
     "svg"
   ],
   "license": "ISC",
-  "main": "lib/index.js",
-  "module": "src/index.js",
+  "main": "cjs/index.js",
+  "module": "modules/index.js",
   "name": "points",
   "scripts": {
-    "build": "npm run build:lib && npm run build:umd",
-    "build:lib": "BABEL_ENV=cjs babel src --out-dir lib",
+    "build": "npm run build:modules && npm run build:cjs && npm run build:umd",
+    "build:cjs": "BABEL_ENV=cjs babel src --out-dir cjs",
+    "build:modules": "BABEL_ENV=modules babel src --out-dir modules",
     "build:umd": "npm run build:umd:dev && npm run build:umd:pro",
     "build:umd:dev": "BABEL_ENV=umd rollup -c",
     "build:umd:pro": "NODE_ENV=production BABEL_ENV=umd rollup -c",
@@ -102,7 +116,7 @@
     "lint": "standard --verbose | snazzy",
     "prepublish": "npm run tidy && npm run build",
     "test": "jest",
-    "tidy": "rimraf lib dist",
+    "tidy": "rimraf modules cjs dist",
     "semantic-release": "semantic-release pre && npm publish && semantic-release post"
   },
   "repository": {