FEATURE: Memory-only routing

[webJose]

It would be nice to be able to disconnect the global location object from the browser's URL and route solely on the values stored in the global object, without changes transferred to the window's URL or vice versa.

Specs

This should be really simple: If the memory-only mode is ON, simply skip the step where changes transfer to the window's URL. For the other way where changes in the window's URL are picked up, simply don't subscribe to any URL-changing events like popstate or hashchange.

Full Mode

Initially, I think full mode cannot operate in memory-only mode because it is, by definition, dependant on the HIstory API.

[webJose]

After drafting a PR for this one, I don't know if it is really worth it. If anyone is interested, upvote this issue with the "thumbs up" emoji.