Japanese Update (#8)

* Japanese Update

* Japanese Update

* Update

* Update

* Delete custom strings

* Remove pre-release data

* Update

locales/en-US/strings.conf

@@ -413,6 +413,7 @@
 !system 1418 The Extra Deck includes at most 15 cards. Yours is %d.
 !system 1419 The Side Deck includes at most 15 cards. Yours is %d.
 !system 1420 Some cards in your Main Deck should be in Extra Deck instead. Check if your Main Deck and Extra Deck are correctly built.
+!system 1421 The declared card is illegal, or not recognizable by the host.
 !system 1500 The duel ended.
 !system 1501 Replay ended.
 !system 1502 Connection has been lost.