Support hapi auth "modes"

[marttinen]

Added tests to check hapi's mode: 'optional' and mode: 'try'.

[coveralls]

Coverage remained the same at 100.0% when pulling 7b01e33 on marttinen:3.3.0-rc into 43c28b5 on felixheck:3.3.0-rc.

[felixheck]

@marttinen thx for the PR. can you pls fix the linting error? :)

[marttinen]

Sure, not done yet. :)

[marttinen]

Please note that on requests with invalid authentication, the result changed from

'Bearer strategy="keycloak-jwt", error="Invalid credentials", reason="invalid token (expired)"'

to

'Bearer strategy="keycloak-jwt", reason="invalid token (expired)", error="Invalid credentials"'

I'm not sure why the order changed, but IMO that shouldn't be an issue.

[marttinen]

Removed because duplicated test.

[felixheck]

It's because it depends if the error attribute is caused by the first or last argument passed to boom.unauthorized() :)

so you're finished and happy with the result? ;-)
I am.

[marttinen]

Yep, work finished and ready to be merged.