Changes

The original argv package was taken from http://software.charlie-dog.com/argv/argv.html with the following license/note:

The Argv Library is Copyright (C) 2001 - 2002 by Oliver Goldman. All Rights Reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted. 

The following modifications were made:

• Added ArgvTest class to test directory.
• Added sub-classes DoubleOption and IntOption and their Parameter classes.
• Added String constructor to ArgumentParser to allow to set the program name, printed in Usage.
• Added name of parameter to StringOption, PairOption, NumberOption, DoubleOption and IntOption.
• Added MissingArgumentException and ArgumentFormatException.
• Renamed arguments to options in ArgumentParser.
• Added addParameter and addOption methods to ArgumentParser
• Renamed all ...Argument classes to ...Option classes
• Split Argument in Option and Parameter interface.
• Added ...Parameter classes
• Changed printUsage to handle proper widths for printing Usage
• Added BailOutException for internal use, to abort parsing arguments and return (for instance to show help or version).
• Added MultiStringOption to allow for mulitple occurences of options such as -I