Alias diaocellus to diaocelles

Reason: Diaocelles = Ocellus + cute, but the character name is misspelled.  
Diaocellus should be the correct spelling, but it currently doesn’t exist.

@Background Pony #68A1  
I think it is also borrowing the final e from diabetes.
 
Just like with  
 
_{(yeah, OK, it would have been an “i” not a “u”…work with me here…)}