[WIP] Fix the saltversion test

Fix empty array get

It was responsible for

    [CRITICAL] Rendering SLS 'base:salt.minion.cert' failed: Jinja variable 'dict object' has no attribute 'cfg01.mk20-lab-advanced.local'
    [ERROR   ] Data passed to highstate outputter is not a valid highstate return: {'local': ["Rendering SLS 'base:salt.minion.cert' failed: Jinja variable 'dict object' has no attribute 'cfg01.mk20-lab-advanced.local'"]}

Salt-minion fix

Debian based distros m2crypto package is actually called python-m2crypto

Salt ssh

Salt ACL and API updates

See merge request !12

Enhance minion.cert

- allow defining custom key/cert path
- ensure key/cert directories
- set key/cert permissions by metadata

Mine publish

See merge request !11

add support for update-guestfs-appliance

Add update-guestfs-appliance command after installing packages.

See merge request !10

Formula reset to specific refs (example: Gerrit review)

See merge request !9

Fixed incorrect placement of if block

See merge request !6

Optional installation source - pip

source:engine metadata created - defaults to pkg installation, pip
installation alternative added

See merge request !5

source:engine metadata created - defaults to pkg
installation, pip installation alternative added

Feature/map jinja yaml

See merge request !4