Allow showing a group by the uuid of any of it's individual crash
This removes the dependency on insertion order.
Also split Group::stats_by_product_and_version from get
%= tag a => (href => "#", class => "text-danger", "data-toggle" => "tooltip", "data-original-title" => $tooltip_text) => begin
%= tag span => (class => "glyphicon glyphicon-warning-sign") => ""
% end