jhack fire is missing `--model`

[rgildein]

I think it would be beneficial to have a "--model" option to target a specific model in fire command.

[PietroPasotti]

The reason why I didn't include that in the first place is that I was assuming that you'd always be firing events in the current model -- so you can see what's happening in the status and log. Or do you often find yourself working on multiple models simultaneously?

[rgildein]

Not really often, but sometimes yes. Good example would be, when I need cross model relations.

[PietroPasotti]

Fair point. added -m to fire and tail in #49