Extend EasyNewsletter to send languages combined one email on top of each other.
For now it only works well for one lange plus english version as alternative below.
Because the text of the link is hard wired in the issuedatafetcher.
Features
If you sent a newsletter issue and have translated it into other languages, the issues will get the content of all translation and combined them in one newsletter issue.
Installation
Install collective.easynewsletter-combined-send by adding it to your buildout: