Clean lib/auth/vault.js
Clean lib/auth/vault.js

  - With the refactor of the auth API in arsenal we need to modify
    lib/auth/vault.js to be compliant.

tomateos/S3,truststamp/S3,lucisilv/Silviu_S3-Antidote,truststamp/S3,lucisilv/Silviu_S3-Antidote,truststamp/S3,scality/S3,scality/S3,truststamp/S3,tomateos/S3,tomateos/S3,lucisilv/Silviu_S3-Antidote,scality/S3,lucisilv/Silviu_S3-Antidote,scality/S3,scality/S3,lucisilv/Silviu_S3-Antidote,tomateos/S3,lucisilv/Silviu_S3-Antidote,tomateos/S3,lucisilv/Silviu_S3-Antidote,truststamp/S3,scality/S3,lucisilv/Silviu_S3-Antidote,scality/S3,truststamp/S3,truststamp/S3,truststamp/S3,tomateos/S3,scality/S3,tomateos/S3,tomateos/S3