[DRE-maint] Bug#955042: redmine: drag and drop of attachments does not work due to used jQuery version

[Marc Dequènes (duck)]

Quack,

Thanks for providing all these info about the JQuery changes.
Using v3 has been done because v1.11 is very old, without upstream 
support, so that would mean handling all problems and security fixes by 
ourselves on the embedded copy and we did not want that. I made some 
fixes already but missed this one.

Regards.
\_o<

-- 
Marc Dequènes