updated Gemfile
styles
added all typology charts; switched to parametric function for scatterplots
added resilience tab
updated city-types dataset with further variable, synced datasets
layout adjustments
switched to D3 for MRvNational scatterplot
fixed colors, line charts size
fixed disposable text transitions
hack to force redraw of charts on tab switch
added slyjs - not functional yet
fixed wonky dataset join
added legend item for no data available
adjusting navigation to highlight current tab
updated selectors
fixed mrvnational dataset
using 2012 population data