improved .gitignore
generated files into the repository
redefined syntax for XBlockExpression and XVariableDeclaration
redefined XLiteral without XClosure
redefined XtypeLiteral
redefinition of XUnaryOperation
redefined XMemberFeatureCall
merged plugin.xml and plugin.xml_gen
removed useless .emptyfolder file
commented out some rule redefinitions
Merge remote-tracking branch 'origin/master'

Conflicts:
	org.eclipse.scout.saml.tests/src/org/eclipse/scout/saml/tests/ParserTest.xtend
	org.eclipse.scout.saml.ui/src-gen/org/eclipse/scout/saml/ui/contentassist/antlr/SamlParser.java
	org.eclipse.scout.saml.ui/src-gen/org/eclipse/scout/saml/ui/contentassist/antlr/internal/InternalSaml.tokens
	org.eclipse.scout.saml.ui/src-gen/org/eclipse/scout/saml/ui/contentassist/antlr/internal/InternalSamlLexer.java
	org.eclipse.scout.saml.ui/src-gen/org/eclipse/scout/saml/ui/contentassist/antlr/internal/InternalSamlParser.java
	org.eclipse.scout.saml/saml_samples/Rka001.saml
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/Saml.ecore
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/Saml.genmodel
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/Saml.xmi
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/parser/antlr/internal/InternalSaml.tokens
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/parser/antlr/internal/InternalSamlLexer.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/parser/antlr/internal/InternalSamlParser.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/BooleanType.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/CompositeElement.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/CompositeElementRule.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/ControlElement.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/ControlElementRule.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/DoubleElement.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/FormElement.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/JavaCodeElement.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/LeafElement.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/LogicElement.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/LogicType.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/LongElement.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/LookupElement.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/Model.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/SamlFactory.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/SamlPackage.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/SequenceBoxElement.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/StringElement.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/impl/CompositeElementImpl.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/impl/CompositeElementRuleImpl.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/impl/ControlElementImpl.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/impl/ControlElementRuleImpl.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/impl/DoubleElementImpl.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/impl/FormElementImpl.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/impl/JavaCodeElementImpl.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/impl/LeafElementImpl.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/impl/LogicElementImpl.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/impl/LongElementImpl.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/impl/LookupElementImpl.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/impl/ModelImpl.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/impl/SamlFactoryImpl.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/impl/SamlPackageImpl.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/impl/SequenceBoxElementImpl.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/impl/StringElementImpl.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/util/SamlAdapterFactory.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/saml/util/SamlSwitch.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/serializer/SamlSemanticSequencer.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/serializer/SamlSyntacticSequencer.java
	org.eclipse.scout.saml/src-gen/org/eclipse/scout/saml/services/SamlGrammarAccess.java
	org.eclipse.scout.saml/src/org/eclipse/scout/saml/Saml.xtext
	org.eclipse.scout.saml/src/org/eclipse/scout/saml/jvmmodel/SamlJvmModelInferrer.xtend
	org.eclipse.scout.saml/src/org/eclipse/scout/saml/validation/SamlJavaValidatorHelper.xtend
	org.eclipse.scout.sdk.saml.importer/src/org/eclipse/scout/sdk/saml/importer/operation/SamlImportOperation.java