added tests for cli log level, minor change to long argument for consistency
Merge pull request #590 from portertech/cli_log_level_tests

added tests for cli log level, minor change to long argument for consistency
[extensions] safe_run() as a catch-all, settings accessor and load_settings()
Merge pull request #591 from portertech/extensions

[extensions] safe_run() as a catch-all, settings accessor and load_settings()