Everything documented in the API reference should have docstrings

[bgrant]

http://distarray.readthedocs.org/en/latest/distarray.html

If it's in this reference, it should have a docstring, including functions, classes, modules, and packages.

We're not doing too badly on this, but there are some exceptions.

[kwmsmith]

This is nice to have, but has to take a back seat to core features.

[bgrant]

This would be an easy place for someone new to get started contributing.