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Fixed bug which raised an error in ruby 2.0, when all chars for the short accessor had already been used
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Added argument setting
:optional => true, so argument will only appear in the parsed option if given by the user, thus it will not be filled using the default value -
Added argument setting
:no_short => true, to prevent the creation of an short accessor for the argument -
Added possibility to define default settings when creating the Parser, for example to prevent creation of short accessors for ALL arguments easily
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Added some more tests and improved readability