{% macro separator(label, align='center') %}
{# display a bloc separator
@param label(unicode): label to show
@param align(unicode): one of "left", "center", "right"
#}
{% if align in ('center', 'right') %}
{% endif %}
{{label}}
{% if align in ('center', 'left') %}
{% endif %}
{% endmacro %}
{% macro disco_icon_grid(disco_entities, icon_name) %}
{# display discovered entities in a grid
@param disco_entities: entities which mush have a name and url key or attribute
@param icon_name: name of a defined icon
#}