- epm-restore: add requirements_dev.txt, setup.py, require.json (npm)
- epm-release_upgrade: drop signs if there are unknown vendor ID during update from repo

- repack skypeforlinux: drop unneeded /opt/skypeforlinux dir
- add play for discord
- eget: add hack for skip mask if there ?...= (some args)
- epm-epm_install: don't use epm command
- add prescription for i586-remove
- epm: print command when run with --verbose or EPM_VERBOSE is set
- epm-remove: add --simulate support for deb

- add repack for teams (move to /opt, fix reqs)
- play: add viber support
- repack: move skype to /opt, fix reqs
- improve all prescriptions for play
- check_vendor: check vendor only on ALT

- epm-release-upgrade: remove gdb before update to p9
- tools_eget: update to eget 4.0 (wget/curl support)
- epm-sh-functions: always use internal tools_eget
- epm-epm_install: fix for install more short name

- presctiptions: use DISTRVERNDOR instead of distro_info
- prescriptions: add --remove support
- epm-prescription: add support for --list, --list-all, --remove