Updated to use ethereum.js

cmd/mist/assets/ext/eth.js/.gitignore

cmd/mist/assets/ext/eth.js/README.md

cmd/mist/assets/ext/eth.js/httprpc.js

cmd/mist/assets/ext/eth.js/index.html

cmd/mist/assets/ext/eth.js/main.js

cmd/mist/assets/ext/eth.js/qt.js

cmd/mist/assets/ext/eth.js/websocket.js

cmd/mist/assets/ext/setup.js

cmd/mist/assets/qml/webapp.qml

ethchain/filter.go

ethchain/state_manager.go

ethpipe/js_types.go

ethutil/list.go