mjucker/aostools: aostools v2.4

New capabilities:

• AddColorbar(): Add a common color bar to existing Facet Plot (8d1bc12)
• LogPlot(): Invert y-axis, make it logarithmic, and change the label format ()
• Anomaly(): Compute anomaly for a xarray.Dataset or xarray.DataArray() (892b66fada54193df5bcb0f1b905e4075073c930)
• CheckSign() and StatTest(): Perform statistical testing along a given dimension (5efbb58)
• OceanIndex() adds 'modiki' option (70cbab363d96b4e30f2fd72034d348f62c6350ae)
• GlobalAvgXr(): Compute meridional average, using any power of weighted by cosine of latitude. Does not compute zonal mean. (394a96bf7f07bb039927380743c238c845658e57)
• FindCoordNames(): Goes through a list of possible coordinate names to determine the names of pressure, latitude and longitude within a given dataset or dataarray. (0085e3fcc0b98e73dc8b2b6c82f6e583d1d417a1)
• Added more stats tests to StatTest().
• constants now includes vorticity parameter and cosine of latitude. (d4fab6cc677b44d48b09dd52690d923cff3381f1)

Many more bugfixes. Thanks for all users providing feedback and allowing aostools to become better.