S-51508 DRY: simplified mock instanceAddedEvent to just have a data: {} property.
S-51508 DRY: simplified mock instanceAddedEvent to just have a data: {} property.

JogoShugh/CommitStream.Web,openAgile/CommitStream.Web,openAgile/CommitStream.Web,JogoShugh/CommitStream.Web,openAgile/CommitStream.Web,JogoShugh/CommitStream.Web,JogoShugh/CommitStream.Web,openAgile/CommitStream.Web