add blitz authorization file
fix ruby version, fix assessment parsing
fix incorrect french message
add path_style true
Add basic (ugly) histograms to summary report for sliders.
Add X axis label
commit to rebuild heroku
commit to rebuild heroku
Add Y axis (as percentage) and grid lines.
Use different colour for default choice and median choice.
Add grey bar for mean choice.
Add graphs for 2 choice sliders.
Refactor to generate slider graphs from a separate function.
Fix indentation.
Add graphs for checkboxes widget.
Add graphs for radio buttons.
Fix label text wrapping for histograms.
Add support for scalers.
Specify graph <div> once.
Put bar labels above bars.