added country lookup util functions
refactored country code util function
renamed util.js -> countryCodeUtil.js
added region selector
added network selector
added methods to get currently selected country and network
added waf.getFilteredData()
using waf.getFilteredData() to draw map
added method to return aggregated map data based on selected filter
showing map based on aggregated data
(temp) trying to use d3 scales to scale radius