Removed --enable-legacy option
Allow for `kind` kwarg to Table.argsort
Use mergesort alg for groups sorting to maintain order
Fall through to default quicksort if mergesort fails
Add unicode and latex aware liter symbol
Add PyPI shields to README
changes xorarr back to x for cleaner API
Improve doc example for reordering columns
Don't install wcs header files that aren't part of the API.
Reorganize units docs to emphasize Quantity over Unit.
Elaborate on uses of CDS unit standard
Use a mixed-unit example for Quantity-instantiated-by-list
Fix undefined reference target errors
Fix rst doctests in time package
Fix rst doctests in nddata package
Fix rst doctests in io package
Fix rst doctests in io.ascii
Remove extra output section
Update comments to match change in example.
Fixed sign of MexicanHat(1/2)DKernel and updated unit tests.