#:178 Fix model/env flag placement

[thedac]

• The current placement of the model/env flag breaks juju 1.x actions
• The -m/-e flag can be placed at the end of the command
• Tested with juju 1.x and 2.x

[ryan-beisner]

There is clearly a need for functional testing of PRs against Amulet, for both 1.x and 2.x stable versions. Is there a plan for that?

[johnsca]

Closing in favor of #180