add hdu attribute to cube
data cannot be a quantity
bugfix: _mask[view] invalid if _mask not defined
Merge pull request #120 from keflavich/hdu_method

Add an 'hdu' convenience method to Cube
Merge pull request #121 from keflavich/bugfix_getitem_mask

Bugfix: Can't index _mask if it is None
Update CHANGES.rst
Add 'ignored keywords' to WCS checking
Merge pull request #122 from keflavich/wcs_checking_ignore

Add 'ignored keywords' to WCS checking
make apply_along_axis public and have it return a projection

cleanup
more cleanup, but also note that the previous commit renamed
"apply_along_axis" to "apply_function", which is more accurate
fix test: unnecessary comma added
fix return type from _apply_numpy_function.   Now that I think about it,
that should probably be made public too
make apply_numpy_function public and have sum, min, max return
projections by default

forgot an underscore

whitespace
make callspec of apply_function and apply_numpy_function same
added changelog entry
fix bug: this was introduced when branches were switched and data was
discarded, which I've never seen before
add documentation, remove locals() reference
out is None check
sum, max, min should not return projections if naxis is not a single
integer
Update to v0.4 of the affiliated package template