Add 'paint' gem as a dependency for console colors
Add the verbose and offline CLI options for later

At some point I'll need to expose these down into the guts
Add #require_jenkins! to make it easier to reason about CLI flow control and requiring Jenkins

The things that will likely need to require Jenkins:

  * `update` without a --save/--ouput option
  * `install`
  * `upgrade`
  * `list`
Allow `jpm update` to fetch an update center from a non-standard source