- use ethreact.Event,
- increased buffered event channels,
- subscribe after loop reading from channel starts

Revert "ethreact - Feature/ethutil refactor"

ethreact - Feature/ethutil refactor

* Compile on the go. Continues compilation in order to update the ASM
  view
* Short cuts commands

- clientIdentifier now set in main wrappers
- version handled within wrapper
- modify InitConfig now returning *ethutil.ConfigManager (passed to gui)
- added NewClientIdentity returning *ethwire.SimpleClientIdentiy (passed to ethereum)

- gui NewWindow takes SimpleClientIdentity as argument
- gui NewWindow takes ethutil.ConfigManager as argument to manage flag persistence
- gui now saves loglevel and custom client id via config.Save
- rename custom client id methods consistently also in wallet.qml
- clientIdentifier now set in main wrappers
- version handled within wrapper
- modify InitConfig now returning *ethutil.ConfigManager (passed to gui)

Feature/keys