node software, node instance: introduce --force option and deprecate --all option.

• node software

  • --force will force building even if already finished, by invoking buildout without -N (no-newest). Existing extends cache will be thus used only when download fails.
  • --all is depercated and now an alias of --force. Use --force without --only-sr instead.

• node instance

  • --force will force instanciation even if already finished.
  • --all is depercated and now an alias of --force. Use --force without --only-cp instead.