Left alignment not working with Pullquote

In your .js file you use .replaceWith to add the span and classes. This methodology doesn't take into account the 'pullquote-left' class concept.

Instead you could remove the .replaceWith line and just use an .addClass to add the 'pullquote-quote' class which would leave the 'pullquote-left' class intact.

This would make the $text = $span.text(); line unnecessary as well.

      // the following line will no longer be needed and can be removed
      //$text = $span.text();      
      $span.clone()
        .prependTo($parent)
        // add this next line
        .addClass('pullquote-quote');
        // remove the following line
        //.replaceWith('<span class="pullquote-processed pullquote-quote">' + $text + '</span>');

There is one change needed in the CSS file as well...

This declaration:
.pullquote-quote .pullquote-left {...}

should be re-arranged (and no space between the classes)
.pullquote-left.pullquote-quote {...}