mbj/mutant — pull request #43 by postmodern (2013-05-15 01:49:06+00:00)
Title: Use OptionParser (closes #7).

* Supports -h and --help options.
* Rescue OptionParser::ParseErrors and re-raise them as CLI::Errors.
* Moved CLIParser::EXIT_FAILURE, EXIT_SUCCESS and Error into CLI.
* Removed CLIParser.