Function seed::browser::dom::virtual_dom_bridge::attach_el_and_children

pub fn attach_el_and_children<Ms>(
    el: &mut El<Ms>, 
    parent: &Node, 
    mailbox: &Mailbox<Ms>
)

Attaches the element, and all children, recursively. Only run this when creating a fresh vdom node, since it performs a rerender of the el and all children; eg a potentially-expensive op. This is where rendering occurs.