TenderMint - proof of concept

* **[p2p](https://github.com/tendermint/tendermint/blob/master/p2p):**  P2P networking stack.  Designed to be extensible.
* **[merkle](https://github.com/tendermint/tendermint/blob/master/merkle):** Immutable Persistent Merkle-ized AVL+ Tree, used primarily for keeping track of mutable state like account balances.
* **[crypto](https://github.com/tendermint/tendermint/blob/master/crypto):** Includes cgo bindings of ed25519.

### Status

* Block manager *now*
* Node & testnet *complete*
* PEX peer exchange *complete*
* p2p/* *complete*
* Ed25519 bindings *complete*
* merkle/* *complete*