Merge branch 'develop' into miner

cmd/bootnode/main.go

cmd/ethereum/flags.go

cmd/ethereum/main.go

cmd/mist/assets/examples/coin.html

cmd/mist/assets/examples/coin.js

cmd/mist/assets/qml/main.qml

cmd/mist/assets/qml/views/info.qml

cmd/mist/bindings.go

cmd/mist/ext_app.go

cmd/mist/flags.go

cmd/mist/gui.go

cmd/mist/html_container.go

cmd/mist/main.go

cmd/mist/qml_container.go

cmd/mist/ui_lib.go

cmd/utils/cmd.go

core/helper_test.go

core/manager.go

crypto/crypto.go

crypto/crypto_test.go