Delete a specific node

def delete(node_name):
    """ Delete a specific node """
    result = {}
    node = nago.core.get_node(node_name)
    if not node:
        result['status'] = 'error'
        result['message'] = "node not found."
    else:
        node.delete()
        result['status'] = 'success'
        result['message'] = 'node deleted.'
    return result