_includes/JB/comments-providers/disqus: use updated js code; use new 'jb_*' variables;
_includes/JB/comments-providers/disqus: use updated js code; use new 'jb_*' variables;

  * changes:

    * use new variables (instanciated in '_includes/JB/comments'):
      'jb_comment_id', 'jb_comment_url';

    * use updated JavaScript code, based on
      'https://{{ site.JB.comments.disqus.short_name }}.disqus.com/admin/install/platforms/universalcode/';

ezequielv/blog-tech,ezequielv/blog-tech