added node environment rules

Author: zeckson

node.js

@@ -0,0 +1,10 @@
+module.exports = {
+  extends: [`htmlacademy/es6`],
+  rules: {
+    // Node.js
+    // Specific overridden rules
+    // ------------------------------------------
+    'no-console': `off`,
+    'no-process-exit': `off`
+  }
+};

test/node/.eslintrc.js

@@ -0,0 +1,13 @@
+const config = require('../../node');
+config.parserOptions = {
+  ecmaVersion: 6,
+  sourceType: 'module'
+};
+config.env = {
+  'es6': true,
+  'browser': false,
+  'node': true,
+  'commonjs': true
+};
+
+module.exports = config;

test/node/no-console.js

@@ -0,0 +1 @@
+console.log(`Console log is allowed inside node environment!`);

test/node/no-process-exit.js

@@ -0,0 +1 @@
+process.exit(1);