Added 5 new biomes as included in MC 1.1 as part of #BUKKIT-496

src/main/java/org/bukkit/block/Biome.java

@@ -25,5 +25,10 @@ public enum Biome {
     ICE_PLAINS,
     ICE_MOUNTAINS,
     MUSHROOM_ISLAND,
-    MUSHROOM_SHORE
+    MUSHROOM_SHORE,
+    BEACH,
+    DESERT_HILLS,
+    FOREST_HILLS,
+    TAIGA_HILLS,
+    SMALL_MOUNTAINS
 }