Michael Bonani

translation is fully completed alos for pl

some pl are missing, other language are not covered see to clarify the way to do it and expose to interested people.

pl is up to date in version 2.0.3

FR IT DE EN up to date for 2.3.0

not at all implemented, take to much for this release

we have to fix a better data structure before doing that

related to #657

the new zip format could help doing this features

removing the feaure for ios

on last build the dowload button is hidden in ios (functionality is still there)