Expanded choices are now translated

Expanded choices are added to the form by the $options[choice_list] which was never translated. The translation_domain option of the view was never set, so is always getting the default (messages) value.
I update the translation_domain with the $options['catalogue'] to resolve this problems.
Translation are now removed from the Type
Update documentation
Merge pull request #1055 from pborreli/typos

Fixed typos
Fixed missing translation
Merge pull request #1056 from pborreli/patch-1

Fixed missing translation
fixed extra constraint violations
add chinese(zh_CN) translation
Merge pull request #1059 from scourgen/master

add chinese translations
Merge branch 'master' of git://github.com/sonata-project/SonataAdminBundle
fixed hungarian translation
Merge pull request #1063 from miklos-martin/master

Fix for hungarian translation
Update Resources/translations/SonataAdminBundle.zh_CN.xliff

Correct the source-language value.

See docs about source-language:
http://docs.oasis-open.org/xliff/v1.2/os/xliff-core.html#source-language
Updated translation to use the translator provided by the admin
Fixed unit tests
Merge branch 'master' of git://github.com/sonata-project/SonataAdminBundle
Merge pull request #1067 from jorns/unit_fix

Unit fix
Merge pull request #1065 from imikay/patch-1

Update Resources/translations/SonataAdminBundle.zh_CN.xliff
Merge pull request #1048 from crisei/master

TranslatableChoiceType now translate expanded choices with the set catalogue
added missing plural forms