I am just wondering if the request-animation-frame.js will be included twice because of the using of *.js.
Since there is only one other file angular-carousel.js, maybe we can say:
```javascript
        src: [
          '<%= dirs.src %>/request-animation-frame.js',
          '<%= dirs.src %>/angular-carousel.js',
          '<%= dirs.src %>/**/*.js'
        ],
```
What do you think?