TODO

Bugfixes
SSH: rewrite sk-ssh ctrl+c exiting/catching
    caught a bug: when pssh'ing vs a non-responding host and then ctrl+c before it times out

Improvements
SSH: refactor the ssh module. it's very, very ugly.
Zabbix: make mntnce command - maintenance adding/editing in zabbix
FRMN/ZBX: write commands do determine in which hostgroup(s) the host is. fdesc, zdesc?
FRMN: add get/set/destroy Foreman parameters commands
FRMN: add new host/clone host to foreman plugin
SHELL: look into file path completion pypsi
SHELL: tab completion for hosts and/or hostgroups
SWK: Make expand_hostlist and run a command unprotected methods, insert swk_instance in parameters passed
    so plugins are able to call other plugins
SSH: ProxyCommand support
General: write in readme about pip install --pre
General: executable permissions?

General
- insert logging in plugins