title: Adding app.js to angular application
body: <p>I'm triying to add bootstrap ui modules to an angular project. In every tutorial I read that after download the module i'm supposed to add a directive (<strong>angular.module(for example: 'App', ['ui.carousel']</strong>) to certain file that in some forums i've read is called app.js. This file doesnt exist in my project. The question is: Should I create it? Where? Is a controller necesary? How is the flow that this must follow? Then I should add it to the index.html?</p>