This is a much better description of its function. It performs idempotent normalization of a URL. If consumers truly need to `encode` a URL (including double-encoding of existing encoded entities), they can use the existing `.encode` method.
normalized_encode in addressable has a number of issues, including https://github.com/sporkmonger/addressable/issues/472
To temporaily work around those issues for the majority of cases, we try parsing with `::URI`. If that fails (e.g. due to non-ascii characters) then we will fall back to addressable.
Hopefully we can simplify this back to `Addressable::URI.normalized_encode` in the future.
This commit also adds support for unicode domain names and emoji domain names with escape_uri.
This removes an unneeded hack checking for pre-signed urls, which are now handled by the general case due to starting off valid and only being minimally normalized. Previous test case continues to pass.
UrlHelper.s3_presigned_url? which was somewhat wide was removed.
It's very easy to forget to add `require 'rails_helper'` at the top of every core/plugin spec file, and omissions can cause some very confusing/sporadic errors.
By setting this flag in `.rspec`, we can remove the need for `require 'rails_helper'` entirely.
