* Fix handling of accented characters from vardicts and metadata
files.
* Removed 'axis' attribute from 2D lat/lon fields, since they are not
truly axes in that case.
* New Python helper function (fstd2nc.extra.get_crs) for getting
projection information from an xarray dataset.
* Turned off annoying librmn messages when using this module from
Python.
* Some support for creating a new Buffer object by instantiating from
an existing Buffer, allowing more specific filtering options.
* Fix filtering for etikets that contain spaces.
* Detect and transform netCDF variable names that contain a '/'.
This can happen, for instance if there are multiple typvars and one
of them contains a '/' character.
* Some support for complex data (datyp=8) from Python interface.
Note: not supported for writing to netCDF, just xarray interface.
* New to_fstd() method to write back to FSTD format instead of netCDF.
* Use only "current" definitions for --opdict and --vardict options,
ignore the obsolete ones.