set secret/address + import/export config
Merge branch 'develop' of github.com:ethereum/cpp-ethereum into develop

* 'develop' of github.com:ethereum/cpp-ethereum:
  Minor fix to the fix.
  Disable unfinished code.
  Typo fix.
  Better language detection.
fix styling, addr len check
fix spacing
Merge branch 'develop' of github.com:ethereum/cpp-ethereum into develop

* 'develop' of github.com:ethereum/cpp-ethereum:
  Fixes for state debugging.
  Debug past transactions in debugger.
  Refactored a lot of State. Killed playback() API. State diffing at arbitrary places in chain.
amount is unsigned
Merge branch 'develop' of github.com:ethereum/cpp-ethereum into develop

* 'develop' of github.com:ethereum/cpp-ethereum:
  Project refactor. Introduce the Serpent library.
  save url in aleth
  neth: show mining speed
  Latest tests-related refactoring & improvments.
Merge pull request #222 from josephyzhou/develop

set secret/address + import/export config