"stamped" event is dispatched before elements are stamped

[tomalec]

It seems I implemented f33a5df incorrectly.
It fires an event stamped once link is appended to the tree so far before content is actually stamped to the tree.

I believe it should behave as described at https://github.com/Juicy/imported-template/blob/master/README.md#events, so we should fire this event at

imported-template/imported-template.html

Line 88 in 4d927ec

See how it's done in juicy-html - it stamps just after nodes are appended to the tree.
https://github.com/Juicy/juicy-html/blob/master/juicy-html.html#L121-L124