DATAES-33 - Polishing

* Move @Parent property recognition to ElasticsearchPersistentProperty
* Move type contraints for @Version and @Parent fields to ElasticsearchPersistentProperty to fail faster
* remove unused constant SUPPORTED_ID_TYPES from SimpleElasticsearchPersistentProperty

Original pull request: #208

src/test/java/org/springframework/data/elasticsearch/core/mapping/SimpleElasticsearchPersistentEntityTests.java

@@ -37,7 +37,7 @@ import org.springframework.util.ReflectionUtils;
  */
 public class SimpleElasticsearchPersistentEntityTests {
 
-	@Test(expected = IllegalArgumentException.class)
+	@Test(expected = MappingException.class)
 	public void shouldThrowExceptionGivenVersionPropertyIsNotLong() throws NoSuchFieldException, IntrospectionException {
 		// given
 		TypeInformation typeInformation = ClassTypeInformation.from(EntityWithWrongVersionType.class);