Made flaming arrows respect PVP settings. Fixes BUKKIT-541

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

@@ -188,7 +188,7 @@ public class EntityArrow extends Entity {
                         damagesource = DamageSource.arrow(this, this.shooter);
                     }
 
-                    if (this.isBurning()) {
+                    if (this.isBurning() && this.world.pvpMode) { // CraftBukkit - abide by pvp setting.
                         // CraftBukkit start
                         EntityCombustByEntityEvent combustEvent = new EntityCombustByEntityEvent(this.getBukkitEntity(), entity.getBukkitEntity(), 5);
                         Bukkit.getPluginManager().callEvent(combustEvent);