Simple and dirty number formatter based on d3.format
Mainly useful to get two alternative notations from a number, e.g. for a bar chart.
1234567 -> { short: "1.2k", // the bar display value
alt: "1,234,567" // the alternative value that pops on hover
}
Using https://github.com/mbostock/d3/wiki/Formatting
Initiated at
