Change base URL to be: host:port/ui rather than host:port/ui/index.html

The URL of the "page" in our single page application is: http://localhost:9001/ui/index.html. Anchors are appended to this to track UI app state so you get URLs like: http://localhost:9001/ui/index.html#/settings/cluster.

The "index.html" adds no value and make the whole thing hard to read.

I propose changing the base URL of our single page application to: http://localhost:9001/ui – which has the advantage of being short and indicating that this is a URL that serves a UI resource (as opposed to a REST API.) The settings/cluster example would look like: http://localhost:9001/ui#/settings/cluster.

This is a good bit more readable. If we can get rid of the slash after the hash anchor, better yet.