LaTeX, ConTeXt templates: more specific language variables.

Instead of directly using `lang`, we now use `babel-lang` and
`polyglossia-lang` and `context-lang`.  These variables are set by
the writers to the necessary values, based on the `lang` variable
(which now always takes a value in BCP47 format).
This commit is contained in:
John MacFarlane
2015-09-25 10:37:12 -07:00
parent 0c7d6fbaba
commit 8a43530380