Dtale

* [184](https://github.com/man-group/dtale/issues/184): "nan" not showing up for numeric columns
* [181](https://github.com/man-group/dtale/issues/181): percentage sum/count charts
* [179](https://github.com/man-group/dtale/issues/179): confirmation for column deletion
* [176](https://github.com/man-group/dtale/issues/176): highlight background of outliers/missing values
* [175](https://github.com/man-group/dtale/issues/175): column renaming
* [174](https://github.com/man-group/dtale/issues/174): moved "Describe" popup to new browser tab
* [173](https://github.com/man-group/dtale/issues/173): wider column input box for GroupBy in "Summarize Data" popup
* [172](https://github.com/man-group/dtale/issues/172): allowing groups to be specified in 3D scatter
* [170](https://github.com/man-group/dtale/issues/170): filter "Value" dropdown for maps to only int or float columns
* [164](https://github.com/man-group/dtale/issues/164): show information about missing data in "Describe" popup

* updated correlations & "Open Popup" to create new tabs instead
* test fixes for dash 1.11.0
* added python 3.7 & 3.8 support

* [144](https://github.com/man-group/dtale/issues/144): Changing data type

* [137](https://github.com/man-group/dtale/issues/137): Outliers in the description window
* [141](https://github.com/man-group/dtale/issues/141): Currency Symbole for column Format
* [156](https://github.com/man-group/dtale/issues/156): heat map
* [160](https://github.com/man-group/dtale/issues/160): Option to filter out outliers from charts
* [161](https://github.com/man-group/dtale/issues/161): Syntax error in 1.8.6
* [162](https://github.com/man-group/dtale/issues/162): chart map animation errors with aggrigations
* [163](https://github.com/man-group/dtale/issues/163): Fix scale for animation mode in the chart

* updates to setup.py to include images

* fixed bug with column calculation for map inputs
* [149](https://github.com/man-group/dtale/issues/149): Icon for Map charts