------------------ - Make key optional for lookup plugin [Marcin Wolny]
3.9.2
------------------ - Mark ttl and max_ttl changed if parsed values differ. [Terry Howe]
3.9.1
------------------ - Add change log and gitchangelog. [Terry Howe]
3.9.0
------------------ - Test refactor. [Terry Howe] - Amend the hashivault_policy_get to return a failure status when a policy doesn't exist rather than a positive response with a Null set. [Danny Webb] - Fix secret list and isolate test. [Terry Howe]
3.8.6
------------------ - Revert the read in hashivault_write. [Terry Howe] - Update docs of modules - authtype option. [Vladislav Saveliev]