* 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
## Additions
+ Add current branch to display
+ Pass Github repo through to the page
+ Add link to source
+ Differentiate "progress bar" and "milestone" headers again
+ Add Git ``h4``, renamed "version control" because it's more interesting
to translate
+ Add progress percentages to the progress bars
- Remove redundant short-hash placeholder
- Remove extraneous margins on ``ul``
- Simplify progress calculation code
* Change some variable names to be more forthcoming about what they
represent
* Fix links to the milestones
* Fix indentation of strings.json
+ Added translations into English for ``cy``, ``es`` and ``na'vi``,
to ensure that all possible current languages are catered for.
+ Added ``background-color`` rule to progress bars on ``project`` to
ensure that they are always visible.
+ Forced lowercase for more of the ``project`` page 'cos it looks nice
(although that's an opinion).
- Removed redundant text shadow rule.
