Minor comment grammar cleanup
Remove 'Created by' line from all header docs
Fix Nocilla setup for client delegate tests breaking tests making real requests

Nocilla, when active and real requests are sent,
causes testing to error out.
Fix nation slug terminology from 'nation name'
Rename entire view data source layer in sample app

Change 'data source' to 'view data source' to
clarify the role and ownership of the data source.