woops - add bignum back to browser tests

test/index.html

@@ -18,7 +18,7 @@
     <script src="test.Address.js"></script>
     <script src="test.Base58.js"></script>
     <script src="test.basic.js"></script>
-    <script src="test.Bignum.browser.js"></script>
+    <script src="test.Bignum.js"></script>
     <script src="test.BIP39.js"></script>
     <script src="test.Block.js"></script>
     <script src="test.Bloom.js"></script>