Objectrest

New:
- Ability to use a free proxy from sslproxies.org during requests

Fixes:
- Headers for OAuth2RequestHandler work now

**Full Changelog**: https://github.com/nwithan8/objectrest/compare/0.3.1...0.4.0

Fix accounting for sub keys and extract list option when dealing with objects in RequestHandler and derived classes

Improved docs, including auto-docs on ReadTheDocs (link in [README](https://github.com/nwithan8/objectrest/blob/master/README.md))
Can handle top-level lists when generating objects from JSON

Built-in support for different request types with OAuth2 and ApiToken handlers

Support for filtering JSON down to a sub-key(s) before making an object

Refactored imports