- 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)