@property {String} can.Component.prototype.tag
@parent can.Component.prototype

Specifies the HTML tag (or node-name) the [can.Component] will be created on.

@option {String} The tag name the [can.Component]
will be created on.  Tag names are typically lower cased and
hypenated like: `foo-bar`.  Component's register their
tag with [can.view.tag].