DATAMONGO-1314 - Fix typo in Exception message.

Original Pull Request: #265

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoTemplate.java

@@ -1960,7 +1960,7 @@ public class MongoTemplate implements MongoOperations, ApplicationContextAware {
 
 		MongoPersistentEntity<?> entity = mappingContext.getPersistentEntity(entityClass);
 		if (entity == null) {
-			throw new InvalidDataAccessApiUsageException("No Persitent Entity information found for the class "
+			throw new InvalidDataAccessApiUsageException("No Persistent Entity information found for the class "
 					+ entityClass.getName());
 		}
 		return entity.getCollection();