app overview will have to wait for now

- timeseries-gauge: overview series weights

- timeseries-gauge: punchcards

- incr_fraction: implement progressive

- overview view: gauge list (a'la github graphs landing)

- overview view: num active users, system stats (realtime widget)

- timeseries gauge: restrict to max resolution

- fix specs

- new readme

- new full_example.rb

- formatter: num, time, currency, percent, time_of_day

- favicon (F)

- minimize/pack js + css

- put images into one sprite

- nice empty states

- favicon (F)

- overview view: gauge list (a'la github graphs landing)

- overview view: num active users, system stats (realtime widget)

README

    $('#sidebar')

      .html('');

    if(!conf.hide_overview){

    /*if(!conf.hide_overview){

      renderSidebarGroup('Overview')

        .append($('<li class="overview">')

          .append('<span class="picto piechart">')

          .append($('<a href="#" class="title">').html('App Overview')));

    }

    }*/

    for(gkey in gauges){

      if(!gauges[gkey].group){ gauges[gkey].group = 'Gauges'; }