Do not leak the passowrd or OAuth2 token when asking if a connection is authenticated
Do not leak the passowrd or OAuth2 token when asking if a connection is authenticated

Previously #authenticated_requests? would return the password, or
OAuth2 token if they were present, instead of returning either true or
false.  Now we explicitly return true and false, to both prevent
leaking the password and OAuth2 token and to obey they intent of a
predicate method.

jasoncodes/octocat_herder