upgrade d3/nvd3
telemetry.js: cache results for ajax calls
legend: switch to nested lists
fix for nvd3
formatted values [my first commit from a plane]
show legend by default -- even before a tooltip is shown
cleanup updateAggregates
fix nvd3 addGraph on non-empty svg: clear the svg before
aggregate selector: add 'All' option; fix 'no data' usecase: when all series are disabled
changed multiple selector
more cleaning and histogram desable