Hi, you have some mistakes in your theme regarding the Bootstrap library. First of all, you didn't add an option to load the base library via CDN but only locally:

html.preprocess.inc

drupal_add_css("{$path_theme}/css/bootstrap.min.css");

At least include this one line commented and write that into your theme documentation:

drupal_add_css('//cdn.jsdelivr.net/bootstrap/3.3.4/css/bootstrap.min.css', array(  'type' => 'external'));

Next, you have the Boostrap library included in your style.css. Why?

Edit: The style.css only was loaded due to caching after I checked out maintenance. Sorry!