Feature/column module

This is the column part of this module https://www.pivotaltracker.com/n/projects/911872/stories/77974996

To start with we have a generic column module that lets you pin the collection length to a max-bars attribute.

After that we'll create a applications module that lets you set a target so we can begin making calculations based on that.
Can this be something more generic? Granted, you've got a sample size of one to implement this module with, but the person using it should be able to pick up that it's something they can alter easily by passing options.