Replace Commander by Yargs

Fixes #4
Fixes #6
Udpate config strings to be more consistent
Update to a better CoffeeScript syntax

Fixes #4
Fixes #6
Remove useless
Add shuss -h --help
Update Readme

Fixes #4
Fixes #6
Re-add LiveReload port argument
Merge pull request #7 from caedes/feature_new_cli

Feature new CLI system