Use pkg installed (not latest), allow_updates, version

[noelmcloughlin]

Resolves #111

[aboe76]

@noelmcloughlin in #111 there is also the point of version or update

in https://docs.saltstack.com/en/latest/ref/states/all/salt.states.pkg.html#salt.states.pkg.installed
the option to add version and allow_updates: True

[noelmcloughlin]

@aboe76 I never noticed, thanks I have reviewed and updated the commit.

I have introduced new parameters under new docker:pkg namespace - but left depreciated docker-pkg:version pillar intact - future PR needs to cleanup this state, maybe #151

[aboe76]

isn't this the same as docker.pkg.version ?

[noelmcloughlin]

Yes and No. That docker.version is generated by map.jinja and docker-pkg:lookup:version pillar. But docker-pkg namespace is, or should be, depreciated.

There is repetition in the code block - I could fix that but small PR gets too big then?

[aboe76]

No problem as long as you have it on your radar, we can merge this one, I rather see small PR's which document the Transitions.

[noelmcloughlin]

Fixed conflicts.

[aboe76]

@noelmcloughlin thanks for this.