Bug fix release following the 1.6 major release with major bug fixes for the grid data interfaces and improvements to the options system.
- Ensured that style options incompatible with active backend are ignored (PR #802).
Added support for placing legends outside the plot area in bokeh (PR #801). - Fix to ensure bokeh backend does not depend on pandas (PR #792).
- Fixed option system to ensure correct inheritance when redefining options (PR #796).
- Major refactor and fixes for the grid based data backends (iris, xarray and arrays with coordinates) ensuring the data is oriented and transposed correctly (PR #794).