An embeddable distributed k/v store for Go

Drax is a distributed k/v store based on raft (specifically https://github.com/hashicorp/raft) The intent is to be relatively light-weight and embeddable, while implementing the API from https://github.com/docker/libkv

Drax is NOT intended for production use. Use at your own risk. This should be considered ALPHA quality.

###TODO:

• Add tests
• Add support for watches
• Serious code cleanup
• Imrpove RPC semantics
• Look at using something other than JSON for encoding/decoding K/V messages, and RPC messages
• Add more documentation (both in code and examples)