fixed legends
completed first iteration of generated comment text
backported hide-all-others code from stackedChart
updated navigation, removed pan-europe tab, enabled highlighting of current tab, removed explore pull-tab
layout and style cleanup
added questions as titles
updated html structure to use updated layout
updated text layout on MR vs N page
updated layout and text
s/scatterplot/chart/g
updated layout of metromonitor page according to new structure