Adding a dependency on code.google.com/p/v8-i18n library.
We've moved our i18n library from v8/src/extensions/experimental to a separate
project. Some files were renamed, and gyp file was cleaned up.
We will update webkit tree once this DEPS change propagates to chromium port of WebKit.
- Faster development cycle
- Makes easier for v8 team to handle merges and rolls to chromium
- Library uses only public v8 API so we don't expect breakages
- Library is not so visible now that's outside of v8 tree