- Backport new version to c8 branch.

- epm: use packagekit name for PackageKit
- serv: add /etc/eepm/serv.conf support
- addrepo/removerepo: add dry-run support
- use dnf by default on Fedora based system
- epm: improve help
- implement epm repo [list|add|remove|fix]
- implement serv cat
- add epm repo clean|save|restore (just skeleton)

- epm repofix: replace sources.list only on ALT
- serv log: run without follow (-f) by default
- epm addrepo: fix add url
- epm-repofix: add initial support for repofix etersoft
- epm repofix: unified subst rules (fix for p9)

- removerepo: fix tasks remove
- rewrite removerepo
- epm remove: fix remove status

- epm-install: fix double run rpm installing on ALT
- epm-remove: don't use hilevel command if --nodeps
- epm-remove: change to a writable dir (/tmp) before remove
- epm-restore: temp. implementation of python requires translation to spec

- epm-repack: alien will use rpmbuild, assure we have it
- epm-repack: repack only selected packages with abs paths (eterbug #14411)
- epm: increase stdinput wait to 10 seconds
- epm-print: improve print pkgsourcename