Update from upstream SpigotMC

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Bukkit-Patches/0013-Expand-Boolean-Prompt-Values.patch

@@ -0,0 +1,26 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: md_5 <md_5@live.com.au>
+Date: Sat, 3 Aug 2013 19:42:16 +1000
+Subject: [PATCH] Expand Boolean Prompt Values
+
+
+diff --git a/src/main/java/org/bukkit/conversations/BooleanPrompt.java b/src/main/java/org/bukkit/conversations/BooleanPrompt.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/conversations/BooleanPrompt.java
++++ b/src/main/java/org/bukkit/conversations/BooleanPrompt.java
+@@ -0,0 +0,0 @@ public abstract class BooleanPrompt extends ValidatingPrompt{
+ 
+     @Override
+     protected boolean isInputValid(ConversationContext context, String input) {
+-        String[] accepted = {"true", "false", "on", "off", "yes", "no"};
++        String[] accepted = {"true", "false", "on", "off", "yes", "no" /* Spigot: */, "y", "n", "1", "0", "right", "wrong", "correct", "incorrect", "valid", "invalid"}; // Spigot
+         return ArrayUtils.contains(accepted, input.toLowerCase());
+     }
+ 
+     @Override
+     protected Prompt acceptValidatedInput(ConversationContext context, String input) {
++        if (input.equalsIgnoreCase("y") || input.equals("1") || input.equalsIgnoreCase("right") || input.equalsIgnoreCase("correct") || input.equalsIgnoreCase("valid")) input = "true"; // Spigot
+         return acceptValidatedInput(context, BooleanUtils.toBoolean(input));
+     }
+ 
+--