Merge develop to master

org.framed.iorm.editpolicymodel.tests/plugin.properties

org.framed.iorm.editpolicymodel/META-INF/MANIFEST.MF

org.framed.iorm.editpolicymodel/plugin.properties

org.framed.iorm.featuremodel/build.properties

org.framed.iorm.model.edit/META-INF/MANIFEST.MF

org.framed.iorm.model.edit/plugin.properties

org.framed.iorm.model/META-INF/MANIFEST.MF

org.framed.iorm.model/plugin.properties

...ramed/iorm/featuremodel/impl/FeaturemodelPackageImpl.java

....model/src/org/framed/iorm/model/impl/OrmPackageImpl.java

org.framed.iorm.transformation.test/META-INF/MANIFEST.MF

org.framed.iorm.transformation.test/plugin.properties

org.framed.iorm.transformation/META-INF/MANIFEST.MF

...src/org/framed/iorm/transformation/EpsilonStandalone.java

...rg/framed/iorm/transformation/TransformationExecutor.java

org.framed.iorm.ui/META-INF/MANIFEST.MF

....iorm.ui/modules/roletype/group_constraints/RoleGroup.etl

...etype/group_constraints/RoleGroupOccurenceConstraints.etl