Dtale

* [475](https://github.com/man-group/dtale/issues/475): fixes for DtaleRedis issues
* [140](https://github.com/man-group/dtale/issues/140): additional string column filters
* refactored draggable column resizing to be more performant
* added dependency on nbformat
* updated Sphinx documentation building to only run on master builds of python3.9
* Also pinned jinja2 to 2.11.3 when building

* [472](https://github.com/man-group/dtale/issues/472): maximum column width
* [471](https://github.com/man-group/dtale/issues/471): predefined filters
* [473](https://github.com/man-group/dtale/issues/473): fixed column filters
* refactored settings (sortInfo, columnFilters, outlierFilters, predefinedFilters) to be stored in redux
* fixed issues with pinned main menu

* [470](https://github.com/man-group/dtale/issues/470): editing cells for column names with special characters

* [465](https://github.com/man-group/dtale/issues/465): optional authentication
* [467](https://github.com/man-group/dtale/issues/467): fixed column menu issues when name has special characters
* [466](https://github.com/man-group/dtale/issues/466): convert complex data to strings
* added "head" & "tail" load types for chart data sampling

* [463](https://github.com/man-group/dtale/issues/463): skew & kurtosis on filtered data
* Moved Correlations & PPS to side panel
* Added "Show/Hide Columns" side-panel
* [462](https://github.com/man-group/dtale/issues/462): Graphs slow with big data

* added ESC button handler for closing the side panel