Removed (unused) feature that maps a command line option to a command, and added the ability to specify a group of mutually-exclusive command-line options.
Changed LoggingCommandLineConverter to set properties only if the appropriate command-line options are present, and mark the log level and stack trace options as mutually exclusive.
Mark the --daemon and --no-daemon options as mutually exclusive.
Fixed javadoc comment.
Changed the declared type for the buildsrc class loader.