- improve anydesk repack
- epm-print: add epm print info command
- serv: add test command (for nginx -t, cupsd -t and so on)
- epm-restore: fix epm restore command example

- epm-release_upgrade: use [alt] sign for Sisyphus
- epm-autoremove: supports for python2 and python3 separately
- epm-sh-install: don't check vendor if a package is unaccesible
- add prescription python2-remove
- repack: add lightworks.sh

- drop alternative name upm, provide epm
- epm-restore: some improvements
- improve teamviewer repack

- epm-restore: add support for various names of requirements.txt file
- epm play: add anydesk, assistant, onlyoffice support
- various small improvements

- epm-install: return 0 if all packages are filtered out
- epm-addrepo: use sudocmd for apt-repo
- epm-repofix: disable root checking