Added new tests for chapters 6 and 9 of ECMAScript Internationalizati…

…on API Specification.

- Removed a few old test cases that were redundant with new, more comprehensive ones.
- Added testIntl.js as standard include for all console tests in test262.py – see related bug 574.
- Added .jshintrc file for settings for the JSHint tool.

.jshintrc

@@ -0,0 +1,3 @@
+{
+    "predef": ["$ERROR", "Intl"]
+}