imp: adapt build scripts to allow ES5 output

README.md

@@ -33,9 +33,10 @@ client will ever be converted to typescript (even though I would really like it)
 Some npm scripts are available:
 
 | Command            | Description                                               |
-| ------------------ | -------------------------------------------------- |
+| ------------------ | --------------------------------------------------------- |
 | npm install        | install every dependency required for this project        |
 | npm run build      | build a bundle of _owl_ in the _/dist/_ folder            |
+| npm run build:es5  | build a bundle of _owl_ in the _/dist/_ folder (ES5 code) |
 | npm run minify     | minify the prebuilt owl.js file                           |
 | npm run test       | run all tests                                             |
 | npm run test:watch | run all tests, and keep a watcher                         |

package.json

@@ -4,9 +4,11 @@
   "description": "Odoo Web Lab",
   "main": "src/index.ts",
   "scripts": {
-    "build:js": "tsc --lib es2017,dom --target esnext --outDir dist/owl src/*",
+    "build:js": "tsc --target esnext --module es6 --outDir dist/owl src/*",
+    "build:js:es5": "tsc --target es5 --module es6 --outDir dist/owl src/*",
     "build:bundle": "rollup -c",
     "build": "npm run build:js && npm run build:bundle",
+    "build:es5": "npm run build:js:es5 && npm run build:bundle",
     "minify": "uglifyjs dist/owl.js -o dist/owl.min.js --compress --mangle",
     "dev": "npm-run-all --parallel \"build:* -- --watch\"",
     "test": "jest",

tsconfig.json

@@ -3,11 +3,10 @@
     "module": "commonjs",
     "preserveConstEnums": true,
     "noImplicitThis": true,
-    "lib": ["es2015", "dom"],
     "removeComments": false,
     "inlineSourceMap": true,
     "declaration": true,
-    "target": "es6",
+    "target": "es5",
     "outDir": "dist",
     "alwaysStrict": true,
     "noUnusedLocals": true,