accomodate for extra DIVs to be in center column

Thorax.js will add extra DIV elements to the markup. This change reduces tight markup requirements to allow for these extra DIVs.
add dashboard markup, styles

the top of the dashboard is a div-based responsive style, other examples are table-based. there's some bleed in the stylesheets, so the measures.less file would have to be commented out to see the table-based styles as intended.