Keep CNAME on master, copy it on build to deploy

CNAME

@@ -0,0 +1 @@
+transport.hallada.net

package.json

@@ -5,7 +5,7 @@
   "private": true,
   "scripts": {
     "start": "NODE_ENV=development ./node_modules/.bin/webpack-dev-server --mode development",
-    "build": "NODE_ENV=production ./node_modules/.bin/webpack --mode production",
+    "build": "NODE_ENV=production ./node_modules/.bin/webpack --mode production && cp CNAME dist/",
     "deploy": "./node_modules/.bin/gh-pages -d dist --remote github",
     "lint": "./node_modules/.bin/tslint src/",
     "test": "echo \"Error: no test specified\" && exit 1"