node version check

bin/cli.js

@@ -1,2 +1,16 @@
 #!/usr/bin/env node
+function validNodeVersion () {
+  var valid = false
+  try {
+    const semver = require('semver')
+    debugger
+    valid = semver.gte(require('process').version, '7.6.0')
+  } catch (err) {}
+  return valid
+}
+
+if (validNodeVersion()) {
   require('../lib/cli-app').run()
+} else {
+  console.log('Sorry, this app requires node v7.6.0 or above. Please upgrade https://nodejs.org/en/')
+}

package.json

@@ -32,7 +32,7 @@
   "repository": "https://github.com/lwsjs/local-web-server",
   "author": "Lloyd Brookes <75pound@gmail.com>",
   "dependencies": {
-    "lws": "^1.0.1",
+    "lws": "^1.0.3",
     "lws-blacklist": "^0.2.3",
     "lws-body-parser": "^0.2.4",
     "lws-compress": "^0.2.1",
@@ -46,7 +46,8 @@
     "lws-request-monitor": "^0.1.5",
     "lws-rewrite": "^0.3.6",
     "lws-spa": "^0.2.3",
-    "lws-static": "^0.4.1"
+    "lws-static": "^0.4.1",
+    "semver": "^5.3.0"
   },
   "devDependencies": {
     "coveralls": "^2.13.1",