Introduce add_theme_support('bootstrap-gallery')

Only apply the Roots [gallery] shortcode if enabled in config.php

lib/cleanup.php

@@ -360,8 +360,10 @@ function roots_gallery($attr) {
   return $output;
 }
 
-remove_shortcode('gallery');
-add_shortcode('gallery', 'roots_gallery');
+if (current_theme_supports('bootstrap-gallery')) {
+  remove_shortcode('gallery');
+  add_shortcode('gallery', 'roots_gallery');
+}
 
 /**
  * Remove unnecessary dashboard widgets

lib/config.php

@@ -7,6 +7,7 @@ add_theme_support('root-relative-urls');    // Enable relative URLs
 add_theme_support('rewrites');              // Enable URL rewrites
 add_theme_support('h5bp-htaccess');         // Enable HTML5 Boilerplate's .htaccess
 add_theme_support('bootstrap-top-navbar');  // Enable Bootstrap's fixed navbar
+add_theme_support('bootstrap-gallery');     // Enable Bootstrap's thumbnails component on [gallery]
 add_theme_support('nice-search');           // Enable /?s= to /search/ redirect
 
 /**