Merge pull request #472 from mmeisinger/fix1772_m

OOIION-1772: Postgres datastore update_doc_mult support _deleted
Move unicode encoding to deserialize method
Dict comprehension in IonObjectSerializer
Skip invalid test
Merge pull request #473 from daf/OOIION-1386

OOIION 1386: Performance gains: move unicode handling out of validating_setattr
Fix event repository find_events with id_only
Add real-time trace logging to call tracer
CIDEVSTC-187: Added resource visibility and consider in queries
CIDEVSTC-187: Support for DELETED lifecycle state and lcstate refactor
CIDEVSTC-187: Enhanced create_mult support
Datastore find_by_view supports non resources profiles
Add ordering to datastore query
Bumped ion-definitions
Fix unicode/str error in object validation