AcademiX 2.6 - 200 updated packages, new applications in the repository, kernel 4.19

Some news of the version, communicated by the developers:

-kernel 4.19.0-16
-200 updated packages -new
applications introduced in the repository
-minsky >> added to the repository (EDU >> Virtual labs) https://github.com/highperformancecoder/minsky
-murexpo-installer-0.60 deb package for installing the murexpo program https://murexpo.org/me/ -
vivaldi installation adjustment (changed key repository)

-minor adjustments