Bugs/missing documentation in JCli API

The following test class shows three things which weren't clear from the example or the JavaDocs.

1. @Cli is not mentioned on the example page
2. the longName version of an option is never set if it contains a dash ("-")
3. the ArgumentProcessor does not enforce required options

import java.io.File;

import org.cyclopsgroup.jcli.ArgumentProcessor;
import org.cyclopsgroup.jcli.annotation.Cli;
import org.cyclopsgroup.jcli.annotation.Option;

// NB: JCli example page does not mention @Cli
@Cli(name = "test")
public class TestLongName {

 File srcDir;

 public static void main(String[] args) {
  TestLongName pojo = new TestLongName();
  ArgumentProcessor<TestLongName> argProcessor = ArgumentProcessor.newInstance(TestLongName.class);
  argProcessor.process(args, pojo);
  System.out.println(pojo.srcDir);
 }

 // NB: longName options which include "-" are never set
 // NB: required options are not enforced
 @Option(name="s", longName="src-dir", required = true)
 public void setSrcDir(File srcDir) {
  this.srcDir = srcDir;
 }
}