Include OnOutputOnly and BeforeAndAfter labels. (#789)

Note On and All as deprecated.
See nunit/nunit-console#721 and nunit/nunit-console#630 for relevant changes. 9919fa4

articles/nunit/running-tests/Console-Command-Line.html

@@ -228,7 +228,7 @@ <h2 id="options">Options</h2>
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 <td><code>--labels=VALUE</code></td>
-<td>Specify whether to write test case names to the output. Values: Off, On, Before, After, or All. If not specified, defaults to Off. <strong>Off</strong>: No labeling is used. Both normal and immediate output appear in the order produced - i.e. immediate first. <strong>On</strong>: A label appears before each sequence of output lines from the same test. Since tests may be run in parallel, output from different tests may be intermixed. <strong>Before</strong>: A label appears at the start of every test, whether it produces output or not. Additional labels are produced as needed if interspersed output takes place, just as for <code>--labels=On</code>. Synonym for <code>--labels=All</code>. <strong>labels=After</strong>: A label appears at the end of every test, whether it produced output or not. This label includes the pass/fail status of the test in addition to its name. Additional labels are produced as needed if there is any output, just as for <code>--labels=On</code>. <strong>All</strong>: A label appears at the start of every test, whether it produces output or not. Additional labels are produced as needed if interspersed output takes place, just as for <code>--labels=On</code>. Synonym for <code>--labels=Before</code>.</td>
+<td>Specify whether to write test case names to the output. Values: Off, OnOutputOnly, Before, After, BeforeAndAfter, On, or All. If not specified, defaults to Off. <strong>Off</strong>: No labeling is used. Both normal and immediate output appear in the order produced - i.e. immediate first. <strong>OnOutputOnly</strong>: A label appears before each sequence of output lines from the same test. Since tests may be run in parallel, output from different tests may be intermixed. <strong>Before</strong>: A label appears at the start of every test, whether it produces output or not. Additional labels are produced as needed if interspersed output takes place, just as for <code>--labels=OnOutputOnly</code>. <strong>labels=After</strong>: A label appears at the end of every test, whether it produced output or not. This label includes the pass/fail status of the test in addition to its name. Additional labels are produced as needed if there is any output, just as for <code>--labels=OnOutputOnly</code>. <strong>BeforeAndAfter</strong> A label appears at the start and end of every test, whether it produced output or not. The label at the end of the test includes the pass/fail status of the test in addition to its name. Additional labels are produced as needed if interspersed output takes place, just as for <code>--labels=OnOutputOnly</code>. <strong>On</strong>. Synonym for <code>--labels=OnOutputOnly</code>, now deprecated (will be removed in a future release). <strong>All</strong>: Synonym for <code>--labels=Before</code>, now deprecated (will be removed in a future release).</td>
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 <td><code>--test-name-format=VALUE</code></td>