Ensure that a copy of the keys is taken otherwise Python 3 is modifying the key list on-the-fly, causing some keys to be missed
moments fixed
Merge pull request #22 from keflavich/moment_fix

Moments working now
Use MiniConda on Travis
Merge pull request #28 from astrofrog/travis-conda

Try using conda for Travis
Use np.isfinite as a mask function
Refactored masks to enable non-array masks, and implemented function masks
Fix bugs in masking
Added tests for masking
Added tests for functional mask
Fix slab for functional masks
Compare WCS using to_header()
Fix test failures
Added tests for flattened
Removed shape from function mask since it doesn't make sense there
Removed read/write methods that were added back during conflict resolution in another branch