Refactor to remove group stack and fix coloring
Merge pull request #403
upgrade d3 to 3.3.10
Small formatting changes
assign filters within anon function scope
fix typo. Closes #359
Improved coloring of scatterplots (for eventual composite graph support)
Legend highlighting support for composited scatterplots
Scatterplot brushing and support for points with the same y-value
Scatterplot highlighting for rectangular brushed areas
Composite chart brushing delegates filtering to child charts
test decreasing composite brush extent
currently broken (failing test when mixing differnt charts in composite)
Fixed legends of composite charts with scatterplot subcharts