- distro_info: set rolling version for ArchLinux
- distro_info: use /etc/os-release firstly, drop obsoleted code
- distro_info: set pretty name if PRETTY_NAME is empty
- move package manager detection to distro_info (-g option)

- distro_info: add --debian-arch

- distro_info: improve ALT c8 support
- add --distro-arch support (returns distro depended arch name)

- distro_info: add -c: print number of available CPU cores
- distro_info: cosmetic improvements

- fix for catching up p9 branches (thanks, iv@)

- distro_info: add support for c8 and c9

- improve virtualization detection
- drop upstart detection
- add --pretty option to print pretty name of the distro

- add -i: print virtualization type
- add -y: print running service manager

- initial build for ALT Sisyphus

distr_info: drop obsoleted systems
distr_info: use hascommand instead which
distr_info: add OpenWrt detection