Allow specification of API base URL.

Rework kwargs to support distance function.

Updated docs from v0.2

Response format change - much more generic. Now is a seriously

lightweight library.

Add more API calls and expose more of the attributes.

Match new API version.

Use the demo key as example

Fix pip install.

Turns out that my "briliant" idea for handling README/setup.py doesn't
play well with pip.

Increase version number. Document changes.

Increase version number. Release.

Changes were minor, so minor version increase.

Add ChangeLog (some systems expect this, so plan ahead).