Introduce luigi-monitor console_script

[dylanjbarth]

@alexdebrie, so sorry for dropping the ball on getting this in -- we moved on internally and I never circled back. But it stayed on my todo list (and took all of 20m... 🙈 ). Here's a proof of concept, let me know what you think and if you like it, what you want to see before merging.

Potential fix for #5

[alexdebrie]

Looks great! Thanks, @dylanjbarth. I'm going to go ahead and bump version to 1.0, and I'll get it pushed up to Pypi.