Odo

New Features
- For conversions that go through chunked pandas DataFrames, adding the
keyword `add_index=True` will append a unique index column onto the data.
Otherwise, the index will likely repeat each chunk.

Bug Fixes
- Fixed an issue whereby column names from SQLAlchemy would not be a standard
string type.
- Fixed a bug with `URL(CSV)` resources when downloading to ensure all data
is downloaded completely.

Miscellaneous
- Removed DyND backend in conjunction with Blaze's removal of same. This was
done on the recommendation of the DyND developers. DyND will be
re-incorporated into Odo once it reaches its 1.0 release.

- Renamed "into" to "odo"
- Swapped order of `source` and `target` arguments.
- Was `into(target, source)`, now: `odo(source, target)`
- `into` still available for backwards compatibility
- new docs location: [odo.readthedocs.org](https://odo.readthedocs.org)
- `conda install -c blaze odo` gets you the latest version of the package