1.1 (Unreleased)

Created a new ~ndcube.NDCubeBase which has all the functionality of ~ncube.NDCube except the plotting. The old NDCubeBase which outlined the NDCube API was renamed NDCubeABC. ~ndcube.NDCube has all the same functionality as before except is now simply inherits from ~ndcube.NDCubeBase and ~ndcube.mixins.plotting.NDCubePlotMixin. [#101]
Moved NDCubSequence plotting to a new mixin class, NDCubSequencePlotMixin, making the plotting an optional extra. All the non-plotting functionality now lives in the NDCubeSequenceBase class. [#98]

Replaced API of what was previously utils.wcs.get_dependent_axes, with two new functions, utils.wcs.get_dependent_data_axes and utils.wcs.get_dependent_wcs_axes. This was inspired by a new implementation in glue-viz which is intended to be merged into astropy in the future. This API change helped fix the NDCube.world_axis_physical_type bug listed below. [#80]
Give users more control in plotting both for NDCubePlotMixin and NDCubeSequencePlotMixin. In most cases the axes coordinates, axes units, and data unit can be supplied manually or via supplying the name of an extra coordinate if it is wanted to describe an axis. In the case of NDCube, the old API is currently still supported by will be removed in future versions. [#98 #103]

Allowed ~ndcube.NDCubeBase.axis_world_coords to accept negative axis indices as arguments. [#106]
Fixed bug in NDCube.crop_by_coords in case where real world coordinate system was rotated relative to pixel grid. [#113].

1.0.1

Fixed bugs in NDCubeSequence slicing and NDCubeSequence.dimensions in cases where sub-cubes contain scalar .data. [#79]
Fixed NDCube.world_axis_physical_types in cases where there is a missing WCS axis. [#80]
Fixed bugs in converting between negative data and WCS axis numbers. [#91]
Add installation instruction to docs. [#77]
Fix function name called within NDCubeSequence.plot animation update plot. [#95]