moments work, required some io changes
a little moment fixing
fix tests
fix the test in moments
moments work?
yeah, moments work, I guess
workaround to deal with quantity arrays rejecting assignment
add moment wcs output
add deepcopy, wcs option for some things
do moments in memory (untested)
use fill instead of a hidden function in _moment_in_memory
block _moment _in_memory because it's untested
in apply_along_axes, empty selection -> nan (which should become masked
if we make a MaskedImage class eventually)
fix a rebase fail
moment work continued; I'm sure this branch will be pruned
note about being wrong
make write an instance method
add test for read/write roundtripping
update docstrings for wcs utils
Merge pull request #41 from keflavich/fits_writing

FITS writing from cube instance