Update to babel 7 and refactor builds to be UMDs

.babelrc

@@ -1,3 +1,3 @@
 {
-  "presets": ["es2015"]
+  "presets": ["@babel/preset-env", { "modules": false, "loose": true }]
 }

.gitignore

@@ -2,3 +2,5 @@
 node_modules/
 dist/
 unicode-properties.*.js
+unicode-properties.js
+unicode-properties.min.js

Makefile.js

@@ -0,0 +1,34 @@
+// https://github.com/shelljs/shelljs#command-reference
+// https://devhints.io/shelljs
+// https://github.com/shelljs/shelljs/wiki/The-make-utility
+require('shelljs/make');
+
+config.fatal = true;
+config.verbose = true;
+
+target.all = () => {
+  target.clean();
+  target.generateTrieJson();
+  target.rollupUMD();
+  target.rollupUMDMin();
+};
+
+target.generateTrieJson = () => {
+  exec('node generate.js');
+};
+
+target.rollupUMD = () => {
+  target.generateTrieJson();
+  env.UGLIFY = false;
+  exec('rollup -c rollup.config.js -o unicode-properties.js');
+};
+
+target.rollupUMDMin = () => {
+  target.generateTrieJson();
+  env.UGLIFY = true;
+  exec('rollup -c rollup.config.js -o unicode-properties.min.js');
+};
+
+target.clean = () => {
+  rm('-f', 'data.json', 'trie.json', 'unicode-properties.js', 'unicode-properties.min.js');
+};

generate.js

@@ -2,6 +2,10 @@ const codePoints = require('codepoints');
 const fs = require('fs');
 const UnicodeTrieBuilder = require('unicode-trie/builder');
 
+// import codePoints from 'codepoints';
+// import fs from 'fs';
+// import UnicodeTrieBuilder from 'unicode-trie/builder';
+
 const log2 = Math.log2 || (n => Math.log(n) / Math.LN2);
 
 const bits = n => (log2(n) + 1) | 0;