Add CLI tools:promote-user-to-admin, refs #7335
Cosmetic changes
Make addSuperUser() static again

I did not see that it was being used from a different task.
EAD export: bioghist - banish <chronlist>, refs #5094
EAD export: include place events, refs #6949
EAD export: getRole() takes no arguments

getRole() hardcodes the cultureFallback option within its body and
takes no arguments, so the array argument never did anything.