Adds comment describing purpose of 'authenticate'
Renames param used in authenicate method

From param[:just_users_to_prove_they_exist_in_test] to
param[:just_resources_to_prove_they_exist_in_test]. The param was not
descriptive because this params is sent from 'client' to 'home' with the purpose
of retrieving users and schools, not just users. So, '_users_' was replaced with
'_resources_'
Removes helper method

The 'client' does not use this method.
Adds links for cross-referencing
Merge branch 'master' of github.com:tdouce/soa_integration_testing