Fixed some bugs in boxplot and a little rewrite of the implementation to be compatible with the rest of the charts codebase.
Added some comments.
Make segment works with previous strategy. So we have to get lists with equal lenght in the ColumnDataSource, not a unique value.
Now working with rects too.
Fixed colors and rearrange of data in the final ColumnDataSource.
Rewrote lists generation and fixed the legend.
Added missed chained methods to boxplot.
Updated example.
Fixed conflicts from merge on _chart.py and and boxplot.py.
More fixes from the merge step.
Merge refactor in again.
Merge branch 'big_refactor' into fix_boxplot
Minor fixes and change cat by groups.
Made boxplot work with multiple data sources.
Made bar, histogram and scatter compatible with multiple datasources.
Fixed docs after accepting multiples datasources.
Box plot rewriting again to use a more simple approach.
Outliers outside the loop.
Made working legend again.
Simplified _set_and_get method.