Spectral-cube

------------------

- CASA cube readers now compatible with ALMA .image files (tested on Cycle 2
data) https://github.com/radio-astro-tools/spectral-cube/pull/165
- Spectral quicklooks available
https://github.com/radio-astro-tools/spectral-cube/pull/164 now that 1D
slices are possible
https://github.com/radio-astro-tools/spectral-cube/pull/157
- `to_pvextractor` tool allows easy export to `pvextractor
<pvextractor.readthedocs.org>`_
https://github.com/radio-astro-tools/spectral-cube/pull/160
- `to_glue` sends the cube to `glue <www.glueviz.org/en/latest/>`_
https://github.com/radio-astro-tools/spectral-cube/pull/153

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- `moments` preserve spectral units now https://github.com/radio-astro-tools/spectral-cube/pull/118
- Initial support added for Air Wavelength. This is only 1-way support,
round-tripping (vacuum->air) is not supported yet.
https://github.com/radio-astro-tools/spectral-cube/pull/117
- Integer slices (single frames) are supported
https://github.com/radio-astro-tools/spectral-cube/pull/113
- Bugfix: BUNIT capitalized https://github.com/radio-astro-tools/spectral-cube/pull/112
- Masks can be any array that is broadcastable to the cube shape
https://github.com/radio-astro-tools/spectral-cube/pull/115
- Added `.header` and `.hdu` convenience methods https://github.com/radio-astro-tools/spectral-cube/pull/120
- Added public functions `apply_function` and `apply_numpy_function` that allow
functions to be run on cubes while preserving important metadata (e.g., WCS)
- Added a quicklook tool using aplpy to view slices (https://github.com/radio-astro-tools/spectral-cube/pull/131)
- Added subcube and ds9 region extraction tools (https://github.com/radio-astro-tools/spectral-cube/pull/128)
- Added a `to_yt` function for easily converting between SpectralCube and yt
datacube/dataset objects
(https://github.com/radio-astro-tools/spectral-cube/pull/90,
https://github.com/radio-astro-tools/spectral-cube/pull/129)
- Masks' `.include()` method works without ``data`` arguments.
(https://github.com/radio-astro-tools/spectral-cube/pull/147)
- Allow movie name to be specified in yt movie creation
(https://github.com/radio-astro-tools/spectral-cube/pull/145)
- add `flattened_world` method to get the world coordinates corresponding to
each pixel in the flattened array
(https://github.com/radio-astro-tools/spectral-cube/pull/146)

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- Initial Release.