Update to Minecraft 1.7

src/main/java/net/minecraft/server/BlockSapling.java

@@ -60,7 +60,7 @@ public class BlockSapling extends BlockFlower {
         // CraftBukkit end
     }
 
-    protected int b(int i) {
+    protected int a_(int i) {
         return i & 3;
     }