Add api version property on hipchat service
There are two types of Hipchat API token - group-level and account-level. Found that group-level api token is not working with v2 API.
So let's make it configurable.
See also #7373
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
There are two types of Hipchat API token - group-level and account-level. Found that group-level api token is not working with v2 API.
So let's make it configurable.
See also #7373