score now defaults to ideal line if no values available.
Moved D3 difference chart to calibrate.js
Added tableToJson. Normalized variable names.
Removed googleChart.
confidence slider now about boolean button.
Added back button. Defaulted questions to hide.
Added back button function.
Back button hidden on finish.
Added d3 charts with transitions.
Added tooltip to d3 chart.
Added notes on interpolation.
Hide feedback container after back button. Removed glitchy curved text.
Color adjustments.
Canvas font spacing fix.
Added population questions.
Hid "next" button.