Renamed MobType->CreatureType and MobSpawner->CreatureSpawner.

This is to bring the names in line with the rest of bukkit.

Deprecated code has been left in to ensure nothing breaks as
a result of refactoring MobType.
This will be removed after 1 week, to give plugin devs time to
migrate

By: Andrew Ardill <andrew.ardill@gmail.com>

paper-api/src/main/java/org/bukkit/block/CreatureSpawner.java

@@ -0,0 +1,54 @@
+package org.bukkit.block;
+
+import org.bukkit.entity.CreatureType;
+
+
+/**
+ * Represents a creature spawner.
+ * 
+ * @author sk89q
+ * @author Cogito
+ */
+public interface CreatureSpawner extends BlockState {
+    /**
+     * Get the spawner's creature type.
+     * 
+     * @return
+     */
+    public CreatureType getCreatureType();
+    
+    /**
+     * Set the spawner creature type.
+     * 
+     * @param mobType
+     */
+    public void setCreatureType(CreatureType creatureType);
+    
+    /**
+     * Get the spawner's creature type.
+     * 
+     * @return
+     */
+    public String getCreatureTypeId();
+    
+    /**
+     * Set the spawner mob type.
+     * 
+     * @param creatureType
+     */
+    public void setCreatureTypeId(String creatureType);
+    
+    /**
+     * Get the spawner's delay.
+     * 
+     * @return
+     */
+    public int getDelay();
+    
+    /**
+     * Set the spawner's delay.
+     * 
+     * @param delay
+     */
+    public void setDelay(int delay);
+}

paper-api/src/main/java/org/bukkit/block/MobSpawner.java

@@ -6,6 +6,8 @@ import org.bukkit.entity.MobType;
  * Represents a mob spawner.
  * 
  * @author sk89q
+ * 
+ * @deprecated
  */
 public interface MobSpawner extends BlockState {
     /**