Dtale

* Hotfix for "Reshape" popup when forwarding browser to new data instances

* New data storage mechanisms available: Redis, Shelve
* [100](https://github.com/man-group/dtale/issues/100): turned off data limits on charts by using WebGL
* [99](https://github.com/man-group/dtale/issues/99): graceful handling of issue calculating min/max information for Describe popup
* [91](https://github.com/man-group/dtale/issues/91): reshaping of data through usage of aggregations, pivots or transposes
* Export chart to HTML
* Export chart dat to CSV
* Offline chart display for use within notebooks
* Removal of data from the Instances popup
* Updated styling of charts to fit full window dimensions

* added syntax highlighting to code exports with react-syntax-highlighting
* added arctic integration test
* updated Histogram popup to "Column Analysis" which allows for the following
* Histograms -> integers and floats
* Value Counts -> integers, strings & dates

* hotfix for dash custom.js file missing from production webpack build script

* [75](https://github.com/man-group/dtale/issues/75): added code snippet functionality to the following:
* main grid, histogram, correlations, column building & charts
* exposed CLI loaders through the following functions dtale.show_csv, dtale.show_json, dtale.show_arctic
* build in such a way that it is easy for custom loaders to be exposed as well
* [82](https://github.com/man-group/dtale/issues/82): pinned `future` package to be >= 0.14.0

* support for google colab
* [71](https://github.com/man-group/dtale/issues/71): Filter & Formats popups no longer have smooth transition from top of screen
* [72](https://github.com/man-group/dtale/issues/72): Column Menu cutoff on last column of wide dataframes
* [73](https://github.com/man-group/dtale/issues/73): Describe popup does full refresh when clicking rows in dtype grid