Improve the package.json scripts

1. Include a `prestart` script, which runs the build
2. Make the `start` script just start the demo server
3. Add a new `dev` script, which contains the nodemon logic
4. nodemon now watches for changes in `*.ts` files and runs the start command

Signed-off-by: Antonis Kalipetis <akalipetis@gmail.com>

.gitignore

@@ -12,3 +12,4 @@ npm-debug.log
 /.idea/
 .env
 build/
+.vscode/

package.json

@@ -52,7 +52,9 @@
     "typescript": "^2.0.3"
   },
   "scripts": {
-    "start": "nodemon --watch src --watch addons --watch demo --exec bash -c './bin/build && node demo/app'",
+    "prestart": "npm run build",
+    "start": "node demo/app",
+    "dev": "nodemon -e js,ts --watch src --watch demo --exec npm start",
     "lint": "tslint src/**/*.ts",
     "test": "mocha --recursive ./lib",
     "build:docs": "jsdoc -c jsdoc.json",