i18n_validate is now used in library.html
i18n_add_book is now used in library.html
i18n_cancel is now used in library.html
i18n for the message 'loading library' in library view
Merge remote-tracking branch 'upstream/master'
just a typo
updated messages.json (pt-BR)
it was an underscore (from pt-BR to pt_BR)
rewrite messages.json for pt-BR to respect the original order
Merge pull request #274 from vincent-gros/master

i18n - use unused messages (add/cancel book, loading library, etc.)