MLRules Editor in JamesGUI selects old syntax by default without switch option

made the new syntax the default syntax

There seems to be no way to create an empty SymbolicMLRulesModel after the changes (default constructor creates example model), so MLRulesModelFileWriterTest#testGenerateSource now fails, as there is species named A() in the example model and the test model.

See https://altair.informatik.uni-rostock.de/bamboo/browse/JAMESII-DEVTEST-TESTDEV-351/test/case/3148511

junit.framework.AssertionFailedError: Model Loading should produce no errors.
ParseError=A already defined
seed =5291136119039979520

at junit.framework.Assert.fail(Assert.java:47)
at junit.framework.Assert.assertTrue(Assert.java:20)
at junit.framework.Assert.assertFalse(Assert.java:34)
at org.jamesii.model.mlrules.writer.antlr.AbstractMLRulesModelFileWriterTest.testGenerateSource(AbstractMLRulesModelFileWriterTest.java:157)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at junit.framework.TestCase.runTest(TestCase.java:168)
at junit.framework.TestCase.runBare(TestCase.java:134)
at junit.framework.TestResult$1.protect(TestResult.java:110)
at junit.framework.TestResult.runProtected(TestResult.java:128)
at junit.framework.TestResult.run(TestResult.java:113)
at junit.framework.TestCase.run(TestCase.java:124)
at org.jamesii.ChattyTestCase.run(ChattyTestCase.java:58)
at junit.framework.TestSuite.runTest(TestSuite.java:232)
at junit.framework.TestSuite.run(TestSuite.java:227)
at [...]

Subsequent issue resolved by moving example model creation out of default constructor to factory method (insert whereever example model is needed) https://altair.informatik.uni-rostock.de/hg/james/private/rev/5b9617c18157d62e01abfa97cc53f3154a735cea