Debian package for v2 (stretch)
The following software are Ishtar dependencies and have to be packaged:
django-simple-history - the package exists for wheezy in Iggdrasil repository - have to be updated to version 1.8.2 (or 1.9 ?) (https://github.com/treyhunner/django-simple-history.git)
python-secretary - version 0.2.14 (https://github.com/christopher-ramirez/secretary)
WeasyPrint - version 0.41 (https://github.com/Kozea/WeasyPrint)
virtualtime - version 1.6 (https://pypi.python.org/pypi/virtualtime)
django-formtools - current Debian version is too old for django 1.11 - version 2.1 is necessary - sid is OK backport it ?