v0.5.1

New with this release is that when identifying coordinates and axes, logic from cf-xarray will be used with built-in regex guesses for matching along with the basic coordinate criteria, allowing for a looser definition of the columns names that are identified. For example, previously a column would only be identified if e.g. "longitude" or if matching units were in the column name. Now a name like "lon" would be recognized as the longitude too.