register

Create a route matching rule.

`route.register(rule [, defaults])`

Create a url matching rule. Optionally provide defaults that will be applied to the underlying data when the rule matches.

The following sets route.data.page = "cart" when the url is #cart and route.data.page = "home" when the url is #.

route.register( "{page}", { page: "home" } );

rule {String}:
the fragment identifier to match. The fragment identifier should contain characters (a-Z), optionally wrapped in braces ( { } ). Identifiers wrapped in braces are interpreted as being properties on can-route’s map. Examples:
```
route.register( "{foo}" );
route.register( "foo/{bar}" );
```
defaults {Object}:
An object of default values. These defaults are applied to can-route’s map when the route is matched.

{Object}:

The internal route object. Use values on this object with caution. It is subject to change.