Tweaks and fixes + added webview debugger

ethereal/assets/back.png

ethereal/assets/close.png

ethereal/assets/ext/ethereum.js

ethereal/assets/ext/messaging.js

ethereal/assets/pick.png

ethereal/assets/qml/views/history.qml

ethereal/assets/qml/views/info.qml

ethereal/assets/qml/views/javascript.qml

ethereal/assets/qml/views/pending_tx.qml

ethereal/assets/qml/wallet.qml

ethereal/assets/qml/webapp.qml

ethereal/gui.go

ethereal/main.go

ethereal/ui_lib.go