Regenerated testing queries according to #237 + minor adjustment to 
testing core project
Merge remote-tracking branch 'origin/master'

Conflicts:
	tests/org.eclipse.viatra2.emf.incquery.testing.queries/plugin.xml
	tests/org.eclipse.viatra2.emf.incquery.testing.queries/src-gen/org/eclipse/viatra2/emf/incquery/testing/queries/.GroupOfFileMatchRecord.java._trace
	tests/org.eclipse.viatra2.emf.incquery.testing.queries/src-gen/org/eclipse/viatra2/emf/incquery/testing/queries/GroupOfFileMatchRecord.java
	tests/org.eclipse.viatra2.emf.incquery.testing.queries/src-gen/org/eclipse/viatra2/emf/incquery/testing/queries/recordrolevalue/.RecordRoleValueMatch.java._trace
	tests/org.eclipse.viatra2.emf.incquery.testing.queries/src-gen/org/eclipse/viatra2/emf/incquery/testing/queries/recordrolevalue/.RecordRoleValueMatcher.java._trace
	tests/org.eclipse.viatra2.emf.incquery.testing.queries/src-gen/org/eclipse/viatra2/emf/incquery/testing/queries/recordrolevalue/.RecordRoleValueMatcherFactory.java._trace
	tests/org.eclipse.viatra2.emf.incquery.testing.queries/src-gen/org/eclipse/viatra2/emf/incquery/testing/queries/recordrolevalue/RecordRoleValueMatch.java
	tests/org.eclipse.viatra2.emf.incquery.testing.queries/src-gen/org/eclipse/viatra2/emf/incquery/testing/queries/recordrolevalue/RecordRoleValueMatcher.java
	tests/org.eclipse.viatra2.emf.incquery.testing.queries/src-gen/org/eclipse/viatra2/emf/incquery/testing/queries/recordrolevalue/RecordRoleValueMatcherFactory.java
	tests/org.eclipse.viatra2.emf.incquery.testing.queries/src-gen/org/eclipse/viatra2/emf/incquery/testing/queries/substitutionvalue/.SubstitutionValueMatch.java._trace
	tests/org.eclipse.viatra2.emf.incquery.testing.queries/src-gen/org/eclipse/viatra2/emf/incquery/testing/queries/substitutionvalue/.SubstitutionValueMatcher.java._trace
	tests/org.eclipse.viatra2.emf.incquery.testing.queries/src-gen/org/eclipse/viatra2/emf/incquery/testing/queries/substitutionvalue/.SubstitutionValueMatcherFactory.java._trace
	tests/org.eclipse.viatra2.emf.incquery.testing.queries/src-gen/org/eclipse/viatra2/emf/incquery/testing/queries/substitutionvalue/SubstitutionValueMatch.java
	tests/org.eclipse.viatra2.emf.incquery.testing.queries/src-gen/org/eclipse/viatra2/emf/incquery/testing/queries/substitutionvalue/SubstitutionValueMatcher.java
	tests/org.eclipse.viatra2.emf.incquery.testing.queries/src-gen/org/eclipse/viatra2/emf/incquery/testing/queries/substitutionvalue/SubstitutionValueMatcherFactory.java
	tests/org.eclipse.viatra2.emf.incquery.testing.queries/src-gen/org/eclipse/viatra2/emf/incquery/testing/queries/unexpectedmatchrecord/.UnexpectedMatchRecordMatch.java._trace
	tests/org.eclipse.viatra2.emf.incquery.testing.queries/src-gen/org/eclipse/viatra2/emf/incquery/testing/queries/unexpectedmatchrecord/.UnexpectedMatchRecordMatcher.java._trace
	tests/org.eclipse.viatra2.emf.incquery.testing.queries/src-gen/org/eclipse/viatra2/emf/incquery/testing/queries/unexpectedmatchrecord/.UnexpectedMatchRecordMatcherFactory.java._trace
	tests/org.eclipse.viatra2.emf.incquery.testing.queries/src-gen/org/eclipse/viatra2/emf/incquery/testing/queries/unexpectedmatchrecord/UnexpectedMatchRecordMatch.java
	tests/org.eclipse.viatra2.emf.incquery.testing.queries/src-gen/org/eclipse/viatra2/emf/incquery/testing/queries/unexpectedmatchrecord/UnexpectedMatchRecordMatcher.java
	tests/org.eclipse.viatra2.emf.incquery.testing.queries/src-gen/org/eclipse/viatra2/emf/incquery/testing/queries/unexpectedmatchrecord/UnexpectedMatchRecordMatcherFactory.java