add build status to README

DOCKER/version.sh

 # json break
-echo "ecm version 0.0.3"
+echo "ecm version 0.11.0"

README.md

+Master [![Circle CI](https://circleci.com/gh/eris-ltd/eris-db/tree/master.svg?style=svg)](https://circleci.com/gh/eris-ltd/eris-db)
+ Develop [![Circle CI (develop)](https://circleci.com/gh/eris-ltd/eris-db/tree/develop.svg?style=svg)](https://circleci.com/gh/eris-ltd/eris-db)
+
 # Eris-DB (Alpha)
 
 `eris-db` is Eris' blockchain-client. It consists of a [Tendermint](http://tendermint.com/) node wrapped by a simple server. The server allows requests to be made over HTTP - either using JSON-RPC 2.0 or a RESTlike web-api - and websocket (JSON-RPC 2.0). The web-APIs are documented in `api.md`. We also have javascript bindings for the RPC methods in [eris-db.js](https://github.com/eris-ltd/eris-db.js).