Add beginnings of translation progress API

* Add totally legit and optimised code to find the number of strings in
  each language.
* Add this as an API call
* Add strings for ``na'vi``, ``es`` and ``nl`` for their own language
  names
* Optimise CSS a bit
* Add classes for the languages, for testing purposes
update translation information

* Remove commented out code
* Covert translationProgress from an array to an object
* Enlargen progress meters
* Add translation table
Add translations; toggle lowercase; remove testCSS
Merge pull request #402 from zuzak/translation

Translation