Version, history and license.
 
 - 2014-06-29 Hartmut chg now all methods are static and part of JZtxtcmdTester.
- 2013-07-28 Hartmut chg/new: dataTree now writes XML
 
- 2013-03-10 Hartmut chg/new: dataTree supports superclass content.
 
- 2012-12-00 Hartmut improved: dataTree circular references with @ 1234 (address) to mark it.
 
- 2012-10-08 created. dataTree A presentation of the content of a Java data tree was necessary.
 
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