gh-936 chrome 33 digest updates.
- Update async call stack image.
- Optimise all images.
- Add intro sentence.
- Don't sound like a robot.
Automatically updating the calendar
sync of ummar's 'gh-936 chrome 33 digest updates. #971'
Merge pull request #971 from umaar/digest-updates

gh-936 chrome 33 digest updates.
Merge pull request #972 from cwdoh/article.ko.digest-jan-update

Updated 'DevTools Digest Jan.' to sync with ummar's #971 issue.
Update NOTICE
Update NOTICE
Merge pull request #970 from shahverdy/master

I added basic RTL support
Fixed RTL for base.html based pages
Like /fa/updates