correct english of snippet_missing_title
[3.0] Add Italian translation
Merge pull request #365 from bendavies/i18-english

correct english of snippet_missing_title
Merge pull request #366 from dlondero/patch-1

[3.0] Add Italian translation
French translation
Merge pull request #370 from tgalopin/3.0

[3.0] French translation
Reformatted a bit the i18n file and reordered locales
Add Polish translation
Merge branch 'polish_translation' into 3.0 (PR #364)

This PR has been rebased before merging it. Closes #364
Fix some typos in the french translation
Added german translation
Merge branch 'german_translation' into 3.0 (PR #369)

This PR was squashed before merging. Closes #369
Merge pull request #375 from integrateurxhtm/patch-1

Fix some typos in the french translation
Translation for pt-BR
Merge branch 'portuguese_translations' into 3.0 (PR #376)

This PR was rebased before merging it. Closes #376
Czech i18n