Bump eslint and use @babel/eslint-parser

Also had to add a `babel.config.js` for it to work

Author: jcbrand

.eslintrc.json

@@ -1,5 +1,5 @@
 {
-    "parser": "babel-eslint",
+    "parser": "@babel/eslint-parser",
     "parserOptions": {
         "ecmaVersion": 2017,
         "sourceType": "module",

Makefile

@@ -1,5 +1,4 @@
 # You can set these variables from the command line.
-BABEL			?= node_modules/.bin/babel
 BOOTSTRAP		= ./node_modules/
 BUILDDIR		= ./docs
 KARMA			?= ./node_modules/.bin/karma

babel.config.json

@@ -0,0 +1,10 @@
+{
+    "presets": [
+        ["@babel/preset-env", {
+            "targets": {
+                "browsers": [">1%", "not ie 11", "not op_mini all", "not dead"]
+            }
+        }]
+    ],
+    "plugins": []
+}