Per Zendesk's request, s/ZenDesk/Zendesk/g (part 1)
Per Zendesk's request, s/ZenDesk/Zendesk/g (part 2)
Per Zendesk's request, s/ZenDesk/Zendesk/g (part 3)
Per Zendesk's request, s/ZenDesk/Zendesk/g (part 4)
Per Zendesk's request, s/ZenDesk/Zendesk/g (part 5)
Update some tests