Fix compilation error in test
Merge pull request #876 from heidiso/develop

Fix compilation error in test
Remove the primary components of the TagMessenger
Changing DAOs and DBOs to use a modified ObservableEntity and the TransactionalMessenger
Revert the rename of eTag to etag for a few classes
Also remove some deprecated code from V2 migration
Replace EtagGenerator with UUID.randomUUID().toString()
Remove forceEtag booleans and any remaining CRUD from migration v2 backups (i.e. unused code).