Update indexes to pick up windows-1255 change, add test. Resolves inexorabletash#59

Author: inexorabletash

lib/encoding-indexes.js

@@ -385,3 +385,9 @@ test(function() {
   assert_array_equals([].slice.call(encoder.encode(false)), [102, 97, 108, 115, 101]);
   assert_array_equals([].slice.call(encoder.encode(0)), [48]);
 }, 'encode() called with falsy arguments (polyfill bindings)');
+
+test(function() {
+  // Regression test for https://github.com/inexorabletash/text-encoding/issues/59
+  assert_array_equals(
+    new TextDecoder('windows-1255').decode(new Uint8Array([0xCA])), '\u05BA');
+}, 'windows-1255 map 0xCA to U+05BA');