Rename the non-relative flag to non-hierarchical?

[SimonSapin]

The term relative has a different meaning in a relative URL (a string that needs a base URL to be parsed successfully) and an URL’s non-relative flag (which indicates it can not meaningfully be used as a base URL). For example, http://whatwg.org is not a relative URL, but it is not non-relative either (its non-relative flag is unset).

To reduce term overloading, the non-relative flag (and non-relative path state) could be renamed to something else. Maybe non-hierarchical? Or just hierarchical and flip the logic. It’s annoying to type and pronounce, but RFC 3986 seems to be using hierarchical for roughly this concept.

[domenic]

See #89.

[SimonSapin]

Ah! Glad I’m not the only one to think this is a problem (if a minor one). I’ll close this in favor of #89.