* Archetype validator
Merge remote-tracking branch 'origin/master'

Conflicts:
	archetype-validator/src/main/java/org/openehr/am/validation/RMInspector.java
	archetype-validator/src/main/java/org/openehr/am/validation/SpecialisedArchetypeValidator.java
	archetype-validator/src/main/resources/validations_ru.properties
	archetype-validator/src/test/java/org/openehr/am/validation/AttributeNameCheckTest.java
	archetype-validator/src/test/java/org/openehr/am/validation/MultiValueAttributeChildIdentifierCheckTest.java
	archetype-validator/src/test/java/org/openehr/am/validation/MultipleValueAttributeCardinalityTest.java
	archetype-validator/src/test/java/org/openehr/am/validation/OntologyTranslationCheckTest.java
	archetype-validator/src/test/java/org/openehr/am/validation/SpecialisedArchetypeWrongRMTypeTest.java
	archetype-validator/src/test/java/org/openehr/am/validation/SpecializationArchetypeIdTest.java
	archetype-validator/src/test/java/org/openehr/am/validation/SpecializationDepthCheckTest.java
	archetype-validator/src/test/java/org/openehr/am/validation/TypeNameCheckTest.java
	archetype-validator/src/test/java/org/openehr/am/validation/UniqueSiblingAttributesCheckTest.java
* Archetype validator references updated
* Fix on adl parser to check for null children