New DateTimeFormatter class for dates in other timezones and languages

New PR for jenkins: #12383
And to make ads for IntelliJ / PHPStorm:

![2014-12-03_14-48-25](https://cloud.githubusercontent.com/assets/878997/5281256/7ec0afc8-7afb-11e4-908d-5f9bd3bf386b.png)