In particular we can stop trying to write to dropped websocket
connections

Signed-off-by: Silas Davis <silas@monax.io>

Makes our events non-blocking and adds Query logic.

Signed-off-by: Silas Davis <silas@monax.io>

Signed-off-by: Silas Davis <silas@monax.io>

event-waiting code in client and other miscellaneous fixes.

Signed-off-by: Silas Davis <silas@monax.io>

encapsulate go-crypto within our account abstraction layer, remove
various panics, prefer stdlib ed25519 methods over go-crypto.

Signed-off-by: Silas Davis <silas@monax.io>

Signed-off-by: Silas Davis <silas@monax.io>

use go-wire data mapper for consistent JSON, use transactor, get rid of unused
file fixtures and use uint64 height.

Signed-off-by: Silas Davis <silas@monax.io>

Execution: remove manager package/notion to simplify and improve structure
(we only have one manager), remove pipe (busywork and not really a
pipe),
use account, blockchain, and state types and interfaces throughout.
TxCache, BlockCache, and State. Encapsulate Tx execution in Executor
interfaces. Implement Tendermint 0.12 ABCI app. Refactor tests to
support new interfaces and make minor improvements to them.

EVM: Use single definitions of state from account packages and use immutable
Account instead of separate vm accounts. Emit vm debug in standard
logging. Reorganise package. Use strongly typed Address.

Signed-off-by: Silas Davis <silas@monax.io>

switching to circleci 2.0

Use genesis and config makers in test

Introduce assertion on global Burrow version and get Application to assert compatible consensus by type

rpc/v0: gofmt and small comment

Author:    Alex Tran Qui <alex@katalysis.io>
Date:      Tue Jan 24 23:00:38 2017 +0100