* added utf-8 markers to all .py files in plugins/{action,cache,callback}
* added utf-8 markers to all .py files in plugins/connection
* added utf-8 markers to all .py files in plugins/doc_fragments
* minor refactors
* minor refactors in plugins/connection/saltstack.py
* minor refactors in plugins/connection/qubes.py
* minor refactor in plugins/connection/lxc.py
* minor refactors in plugins/connection/chroot.py
* minor refactors in plugins/connection/funcd.py
* minor refactors in plugins/connection/iocage.py
* minor refactors in plugins/connection/jail.py
* added changelog fragment