Archetypes.multilingual

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- Update .po files and .pot
- Fix some failing tests
- Bumped version to match the others [sneridagh]

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- Added tests [sneridagh]
- Solved bugs on subscribers [ramon]
- Tuned AT babel view [ramon]
- Monkey language field [ramon]

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- Added needed babel view template [sneridagh]
- Language independent field implementation [jcbrand]
- ILanguage implementation [awello]