Added reusable legend component in Color Panel (#19)
Added Legend
Pie chart "Show Text" option
cleanup
Added Header "roll-up" function (#42)
HeaderDiv and MainDiv scroll top to on event changes (#16)
Moved rollup from core to its own panel
Fixed issues with blank data values and zero-height/width cells in table/mosaic (#46 and #30)
MainDiv wasn't getting resized on rollup toggle
Added Downloading... and Processing... animations to dataset changes (#45)
bug fix - CreateLegend errored if called before GetBackgroundColor (i.e. when no cells were drawn)
Redraw shows Calculating... animation (#45)
Back/forward now works correctly across changes in visualization (#3)
Back/forward works correctly over dataset changes (#3)
Changelog and settings update to 0.3.1