Reorder Smashing Rock's smashing order. Closes #64

Can't work out why it looks like a Ball of Moss when thrown though, Chisel is doing something wierdly.

src/main/java/com/cricketcraft/chisel/entity/EntitySmashingRock.java

@@ -105,11 +105,11 @@ public class EntitySmashingRock extends EntityThrowable
         {
             resMeta = 2;
         } else if(block.equals(Blocks.cobblestone))
-        {
-            resBlock = Blocks.sand;
-        } else if(block.equals(Blocks.sand))
         {
             resBlock = Blocks.gravel;
+        } else if(block.equals(Blocks.gravel))
+        {
+            resBlock = Blocks.sand;
         }
 
         if(resBlock.equals(block) && resMeta == meta)