Extend the "Codeblock for TYPO3" and mark it as "version 2014-03-23".

The Codeblock for TYPO3 is a code snippets that has to be appended
to the conf.py file of a documentation project.

It needs to be there to pull the TYPO3 specific extensions of the
t3sphinx package in.

We now
- add support for .../t3sphinx/locale/
and set
- html_translator_class =
    "t3sphinx.writers.t3htmlwriter.T3HTMLTranslator"