Pass messages from translate method to get them translated in JSON results used later by folder_contents view

[erral]

Fixes #204

[mister-roboto]

@erral thanks for creating this Pull Request and help improve Plone!

To ensure that these changes do not break other parts of Plone, the Plone test suite matrix needs to pass.

Whenever you feel that the pull request is ready to be tested, either start all jenkins jobs pull requests by yourself, or simply add a comment in this pull request stating:

@jenkins-plone-org please run jobs

With this simple comment all the jobs will be started automatically.

Happy hacking!

[erral]

@jenkins-plone-org please run jobs

[vincentfretin]

Nice! So those one are already translated in the plone domain.

[vincentfretin]

"to pass to" instead of "to pass from", and technically translate is a function, not a method.
=> Pass messages to the translate function to get them translated for folder_contents view

[erral]

@jenkins-plone-org please run jobs

[vincentfretin]

@erral When jenkins is green, you can merge.
Once this is merged, you need to add "plone.app.content" in the checkouts.cfg of buildout.coredev so @mauritsvanrees know this package has changes. mr.roboto used to do this automatically once the PR was merged but it's not the case anymore.
Note: lots of packages are already checkout when you use experimental/i18n.cfg but you still need to add the package in checkouts.cfg to know this needs a new release.

[erral]

Oh, I thought mr.roboto was still doing its job silently, anyway I'll do it. Thanks.

[vincentfretin]

Unfortunately no, there is a comment in checkout.cfg about it linking to plone/mr.roboto#79

[vincentfretin]

You may know all this already, but I write it here, this can help others reading the comments.
Please be sure you do git pull before doing your commit "checkout plone.app.content". Or if you did your commit already and not have already ran git push, run git pull --rebase then git push. This to avoid a merge commit, a fake commit '[fc]' may have happened in between if someone merged another PR.