Various fixes; boats, minecarts, musicblocks

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

@@ -28,7 +28,7 @@ public class BlockStationary extends BlockFluids {
         world.i = true;
         world.a(k, l, i1, bi - 1, j1);
         world.b(k, l, i1, k, l, i1);
-        world.h(k, l, i1, bi - 1);
+        world.i(k, l, i1, bi - 1);
         world.i = false;
     }
 

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

@@ -86,7 +86,7 @@ public class EntityBoat extends Entity implements CraftMappable { // CraftBukkit
     }
     // CraftBukkit end
 
-    public double l() {
+    public double k() {
         return (double) J * 0.0D - 0.30000001192092896D;
     }
 
@@ -317,7 +317,7 @@ public class EntityBoat extends Entity implements CraftMappable { // CraftBukkit
             double d1 = Math.cos(((double) v * 3.1415926535897931D) / 180D) * 0.40000000000000002D;
             double d2 = Math.sin(((double) v * 3.1415926535897931D) / 180D) * 0.40000000000000002D;
 
-            j.a(p + d1, q + l() + j.F(), r + d2);
+            j.a(p + d1, q + k() + j.F(), r + d2);
             return;
         }
     }

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

@@ -167,7 +167,7 @@ public class EntityMinecart extends Entity implements IInventory, CraftMappable
     }
     // CraftBukkit end
 
-    public double l() {
+    public double k() {
         return (double) J * 0.0D - 0.30000001192092896D;
     }
 

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

@@ -54,6 +54,10 @@ public class ItemBlock extends Item {
             }
         }
 
+        if (itemstack.a == 0) {
+            return false;
+        }
+
         // CraftBukkit start - store the old data so we can undo it
         int oldMaterial = world.a(i, j, k);
         int oldData = world.b(i, j, k);

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

@@ -102,6 +102,11 @@ public class WorldServer extends World {
         return explosion;
     }
 
+    public void c(int i, int j, int k, int l, int i1) {
+        super.c(i, j, k, l, i1);
+        D.f.a(i, j, k, 64D, ((Packet) (new Packet54(i, j, k, l, i1))));
+    }
+
     // CraftBukkit start
     private final CraftWorld world;
     private final CraftServer server;