Fix problem with username suggestion

server/methods/getUsernameSuggestion.coffee

@@ -20,7 +20,7 @@ usernameIsAvaliable = (username) ->
 	else
 		usernames.push user.name
 
-	nameParts = user?.name?.split()
+	nameParts = user?.name?.split(' ')
 	if nameParts.length > 1
 		first = nameParts[0]
 		last = nameParts[nameParts.length - 1]