move directive template to external file and put labels into template
change main view to include bootstrap panels and some logic about what parts are visible/active
add colors comment, center line dividers and adjust center targets to account for the dampening effect of the model so that groups go into quadrants more
fix error in population total watcher that occured when population total switched from being undefined to defined
some whitespace that I will probably remove later
Merge pull request #1 from leoshmu/layout-improvements

Layout improvements and some additional functionality