Kerberos is [for some reason] spelled [and pronounced] Cerberus in English

CHANGELOG

@@ -1,8 +1,8 @@
 Version 2.7
 
 	New ponies: basil, cloudkicker, cow, derpysad, flowertrio, frederickhorseshoepin, horsemd,
-	            jeffletroski, jesuspezuna, joe, joetuxedo, kerberos, manticore, meadowsong,
-	            meliot, pinkiegummydisguise, seaswirl, theodoredonaldkerabatsos, turf, 
+	            jeffletroski, jesuspezuna, joe, joetuxedo, cerberus, manticore, meadowsong,
+	            meliot, pinkiegummydisguise, seaswirl, theodoredonaldkerabatsos, turf,
 	            waltercoltchak
 
 	New extraponies: blueballblitz (Various fanfics, Shadowbolt), drhooves1, drhooves2, drhooves3,

manuals/ponysay.texinfo

@@ -1847,7 +1847,7 @@ sequences.
 @item
 New ponies: @file{basil}, @file{cloudkicker}, @file{cow}, @file{derpysad},
 @file{flowertrio}, @file{frederickhorseshoepin}, @file{horsemd}, @file{jeffletroski},
-@file{jesuspezuna}, @file{joe}, @file{joetuxedo}, @file{kerberos}, @file{manticore}, 
+@file{jesuspezuna}, @file{joe}, @file{joetuxedo}, @file{cerberus}, @file{manticore}, 
 @file{meadownsong}, @file{meliot}, @file{pinkiegummydisguise}, @file{seaswirl},
 @file{theodoredonaldkerabatsos}, @file{turf}, @file{waltercoltchak}
 @item

ponyquotes/ponies

@@ -30,6 +30,7 @@ carrot+carrottop+goldenharvest
 celestia+fillistia+fillycelestia+celestiasmall
 changeling
 cheerilee+cheerilee80
+cerberus
 cherryberry
 cherrycola
 chrysalis+changelingqueen
@@ -81,7 +82,6 @@ jeffletroski
 jesuspezuna
 joe+joetuxedo
 junebug
-kerberos
 laflour
 lemonhearts
 lightning