Authenticate method optionally returns a base64 encoded token

[jvanderhoof]

Connected to #1050

[dustinmm80]

What is this in reference to, do you have a link?

[orenbm]

Here's one: https://github.com/conjurinc/docs/blob/master/reference/conjur_ce.md#set-and-retrieve-the-value-of-a-secret

As you can see, the end user receives the response and then base 64 encodes it (# token=$(echo -n $response | base64 | tr -d '\r\n')) in order to use it. The question is if we can instead return the token already encoded so the user can use it immediately.

Hope this clarifies.

[kgilpin]

We currently do this transformation in the command line with the -H option, but we could add an option to do it server-side as well. That seems like it could be a nice convenience.

[orenbm]

@liavyona can this issue be closed? if so, please link to the PR in a comment a close.