Dtale

* additional updates to how int/float hex conversions work

* [317](https://github.com/man-group/dtale/issues/317): convert int/float to hexadecimal
* Copy Columns/Rows to clipboard using Shift+Click & Ctrl+Click
* Added "items" function to global state mechanisms
* [296](https://github.com/man-group/dtale/issues/296): heatmap doesn't respect current filters

* Additional fixes for 313 & 302
* Handling for partial `.ini` files
* Handling for dictionary inputs w/ non-iterable values

* [313](https://github.com/man-group/dtale/issues/313): support for numpy.array, lists & dictionaries
* [302](https://github.com/man-group/dtale/issues/302): configuration file for default options
* Removal of legacy charting code & updating flask route to plotly dash charts from `/charts` to `/dtale/charts`
* Update to how routes are overriden so it will work with gunicorn
* Documentation
* running within gunicorn
* embedding in another Flask or Django app
* configuration settings

* [311](https://github.com/man-group/dtale/issues/311): png chart exports and fix for trandlines in exports
* Added the option to switch grid to "Dark Mode"

* Documentation updates & better formatting of sample dataset buttons
* bugfixes for loading empty dtale in a notebook and chart display in embedded app demo