Upgrade to EvB 4.0.0.0 Event Broker Changes Activity workflow breaks existing AIC and workflow definitions

I have attached a version of the the PS script provided to highlight the approach I took to handle the upgrade while avoiding creation of duplicate AID and WorkflowDefinition objects in my MIM configuration:

ConfigureEventBrokerChangesActivity.ps1

This version checks for the presence of an existing AIC object and updates it.  Then, because we can't automatically be 100% sure that there is an existing workflow, or realistically automate their update, it checks for their likely presence and if found explains the change required.