Merge pull request #649 from codewarrior0/patch-2

Fix large extractions on small stored item counts returning incorrect stacks

src/com/jaquadro/minecraft/storagedrawers/api/storage/IDrawer.java

@@ -68,7 +68,7 @@ default int adjustStoredItemCount (int amount) {
             int stored = getStoredItemCount();
             int destroy = Math.min(Math.abs(amount), getStoredItemCount());
             setStoredItemCount(stored - destroy);
-            return amount + destroy;
+            return Math.abs(amount + destroy);
         } else {
             return 0;
         }