v1.4.1

This is a bugfix release also featuring some significant behind the scenes modernisation improvements:

• Lots of important updates from @ocefpaf regarding packaging and documenation.
• Bug fix for dask/numpy where from @lee1043
• Documentation update from @guidov
• Fixes for xarray interface from @griverat and @rabernat

Version 1.4.0

• Add support for dask arrays [#107, #109], thanks to @ScottWales.

Version 1.3.1

• Fix for the cdms interface on Python 3 [#101, #102]

Version 1.3.0

• Minor updates affecting xarray compatibility, now requiring xarray >= 0.9.
• Modernized testing infrastructure (pytest instead of nose, pycodestyle instead of pep8).
• Python 3 bug fixes.

Version 1.2.0

Improved the detection of time axes in the iris interface.

Version 1.1.0

Release notes:

• Added an xarray interface allowing use of xarray.DataArray objects with eofs.
• Fix bug in setting ddof in eofs.tools.iris.covariance_map(), previously it was always 1 regardless of the ddof keyword.
• Better Python 2 and 3 support without relying on 2to3.