Not compatible with modern Faraday

[nevinera]

Problem

The current version of Faraday doesn't appear to be compatible with the latest release of Oktakit (2017), and it's beginning to block other gem upgrades.

Details

The issues I'm aware of are both around the RaiseError middleware:

• Fix RaiseError middleware for Faraday v1.2.0 #38 addresses the calling style for that middleware
• builder.use apparently isn't appropriate for this type of middleware anymore (they want you to use builder.adapter I think?

(My attempts to monkey-patch the latter have all failed though, so I could be misunderstanding the problem).

[tomekchime]

It looks like oktakit also displays a deprecation warning on every request

WARNING: `Faraday::Connection#authorization` is deprecated; it will be removed in version 2.0.
While initializing your connection, use `#request(:authorization, ...)` instead.
See https://lostisland.github.io/faraday/middleware/authentication for more usage info.

which I beleive is coming from the authorization call here

oktakit/lib/oktakit/client.rb

Lines 192 to 193 in 197230d

	http.authorization('SSWS ', @token) if @token
	http.authorization(:Bearer, @access_token) if @access_token