Add jQuery.flot for graphs
Graph data endpoint
Graph frontend JS and CSS
Change graph to show only past hour.
Move graphs to own page, updated jQuery.flot and jQuery.flot.stack to working versions.
Add auto-refresh of graph data.
Leave averages as ints. No need for the precision.
Rework so front-end JS is generic
Loading feedback, flexible data time range, cleanup
tidyup
Allow the server to set stacking.
Merge pull request #19 feature/graphs