add l20n.gaia files
switch optimize to l20n
remove l20n.gaia
work on all files
use l20n.webl10n.min
resolve branding in multilocale.py
[webapp-optimize] add <meta name=locales> when GAIA_CONCAT_LOCALES is true
[webapp-optimize] Translation dictionaries are now AST objects with type and body
use l20n everywhere
use l20n
switch l10n.js to use l20n
update l10n.js link