EHN: versioning phases 4 & 5

pom.xml

src/main/java/caosdb/server/CaosDBServer.java

src/main/java/caosdb/server/caching/JCSCacheHelper.java

src/main/java/caosdb/server/database/DatabaseUtils.java

...er/database/backend/implementation/MySQL/MySQLHelper.java

...backend/implementation/MySQL/MySQLInsertSparseEntity.java

...se/backend/implementation/MySQL/MySQLRetrieveParents.java

...backend/implementation/MySQL/MySQLRetrieveProperties.java

...mentation/MySQL/MySQLRetrieveQueryTemplateDefinition.java

...ckend/implementation/MySQL/MySQLRetrieveSparseEntity.java

...backend/implementation/MySQL/MySQLUpdateSparseEntity.java

...rver/database/backend/interfaces/RetrieveParentsImpl.java

...r/database/backend/interfaces/RetrievePropertiesImpl.java

...ckend/interfaces/RetrieveQueryTemplateDefinitionImpl.java

...database/backend/interfaces/RetrieveSparseEntityImpl.java

.../database/backend/transaction/DeleteEntityProperties.java

...rver/database/backend/transaction/DeleteSparseEntity.java

...rver/database/backend/transaction/InsertSparseEntity.java

.../server/database/backend/transaction/RetrieveParents.java

...rver/database/backend/transaction/RetrieveProperties.java