Update CraftBukkit to Minecraft 1.7.2

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

@@ -41,7 +41,7 @@ public class EntityLargeFireball extends EntityFireball {
 
     public void a(NBTTagCompound nbttagcompound) {
         super.a(nbttagcompound);
-        if (nbttagcompound.hasKey("ExplosionPower")) {
+        if (nbttagcompound.hasKeyOfType("ExplosionPower", 99)) {
             // CraftBukkit - set bukkitYield when setting explosionpower
             this.bukkitYield = this.yield = nbttagcompound.getInt("ExplosionPower");
         }