added method get_translations(field_name)

[amirnissim]

useful for checking user entered input against all translations of a translatable field

[zmathew]

I wonder if we should return a dict mapping language to translation instead. Otherwise it could be ambiguous as to which language a translation belong to.
For example, if you have languages en and fr (in that order), but you don't have a translation for 'en'. get_translations will return ['something'] but you won't know which language that is.

[amirnissim]

@zmathew
I agree, changed to return dict.
It is still easy enough to get the list of translated strings:

obj.get_translations('name').values()
-> ['English_name', 'French_name']

and it is now easy to test if there is a translation for a language:

'en' in obj.get_translations('name')
-> True