Undo 3e74a42 to preserve merge flow of non-breaking-change-branch -> …

…master -> canary

.github/CONTRIBUTING.md

@@ -11,3 +11,9 @@ For bug reports, please include:
 JSFiddle template: https://jsfiddle.net/ad3quksn/340/
 
 JSFiddle template for IE11 and other old browsers: https://jsfiddle.net/ad3quksn/341/
+
+---
+
+For pull requests:
+
+**Please make sure that `dist/*` files aren't committed.**

.gitignore

@@ -1,4 +1,3 @@
 node_modules
 bower_components
 package-lock.json
-dist

README.md

@@ -166,6 +166,8 @@ If you would like to contribute enhancements or fixes, please do the following:
   - in browser: http://localhost:8080/test/qunit/
   - via CLI: `npm test`
 
+6. Make sure that `dist/*` files aren't committed and create a pull request.
+
 
 Related projects
 -------------------------

config/utils.js

@@ -5,10 +5,6 @@ const banner = require('./banner.js')
 const fs = require('fs')
 const uglify = require('uglify-js')
 const css = require('rollup-plugin-css-only')
-const pify = require('pify')
-const mkdirp = require('mkdirp')
-
-const mkdirpAsync = pify(mkdirp)
 
 const toUpper = (_, c) => {
   return c ? c.toUpperCase() : ''
@@ -30,18 +26,15 @@ const write = (dest, code) => {
 
 const packageRollup = (options) => {
   const moduleId = classify(pack.name)
-  return mkdirpAsync('./dist')
-    .then(() => {
-      return rollup({
-        input: options.entry || 'src/sweetalert2.js',
-        plugins: [
-          css({ output: false }),
-          babel({
-            exclude: 'node_modules/**'
-          })
-        ]
+  return rollup({
+    input: options.entry || 'src/sweetalert2.js',
+    plugins: [
+      css({ output: false }),
+      babel({
+        exclude: 'node_modules/**'
       })
-    })
+    ]
+  })
   .then((bundle) => {
     return bundle.generate({
       format: options.format,