OGM-37 Using dedicated externalizer per key type to avoid redundant encoding of type information
OGM-361 Removing obsolete "start" flag in InfinispanDatastoreProvider
OGM-435 Making sure Ehcache's caches are always accessed using the right key type
OGM-435 Ensuring key objects can be (de-)serialized, establishing means of versioning the persisted representation
OGM-435 Getting rid of some deprecation warnings
OGM-443 Adding @TestForIssue annotation
OGM-443 Making sure updates are propagated to persistent objects in Ehcache