Change rollup.config.js according to the new rollup version

Forwarded: https://github.com/garycourt/uri-js/pull/57

--- a/rollup.config.js
+++ b/rollup.config.js
@@ -3,9 +3,7 @@
 const packageJson = require('./package.json');
 
 export default {
-	entry : "dist/esnext/index.js",
-	format : "umd",
-	moduleName : "URI",
+	input : "dist/esnext/index.js",
 	plugins: [
 		resolve({
 			module: true,
@@ -13,20 +11,13 @@
 			preferBuiltins: false
 		}),
 
-		babel({
-		  "presets": [
-		    ["latest", {
-		      "es2015": {
-		        "modules": false
-		      }
-		    }]
-		  ],
-		  "plugins": ["external-helpers"],
-		  "externalHelpers": false
-		}
-)
+		babel()
 	],
-	dest  : "dist/es5/uri.all.js",
-	sourceMap: true,
-	banner: "/** @license URI.js v" + packageJson.version + " (c) 2011 Gary Court. License: http://github.com/garycourt/uri-js */"
+	output: {
+        	format : "umd",
+        	name : "URI",
+        	file  : "dist/es5/uri.all.js",
+        	sourcemap: true,
+        	banner: "/** @license URI.js v" + packageJson.version + " (c) 2011 Gary Court. License: http://github.com/garycourt/uri-js */"
+	}
 }