SEO support on routing

[greenlaw110]

Allow routing support SEO, e.g.

@GetAction("/foo/bar/{id}/...")

Where the ... means irrelevant in routing but it does make sense for search engine to grab the URL. Say

GET http://server/foo/bar/123/my-new-article-about-actframework

has exactly the same effect in terms of routing as

GET http://server/foo/bar/123

However the appendix my-new-article-about-framework in the URL makes sense to search engine