ATLAS-1766: updated NotificationConsumer implementation to use new Kafka Consumer API, to enable support for SASL_SSL protocol
Signed-off-by: Madhan Neethiraj <madhan@apache.org>

Signed-off-by: Madhan Neethiraj <madhan@apache.org>

ATLAS-1539 Integration tests in projects which use the typesystem test jar (e.g. webapp) can now be run successfully when invoked in the project directory (dkantor)

Signed-off-by: Madhan Neethiraj <madhan@apache.org>

ATLAS-1111 Data loss is observed when atlas is restarted while hive_table metadata ingestion into kafka topic is in-progress(shwethags via sumasai)

ATLAS-861 1 table out of 50,000 tables is left unimported throwing exception during deserialization (sumasai via shwethags)

ATLAS-902 Atlas throws exception due to null definition in Hive create table statement (svimal2106 via shwethags)

ATLAS-922 remove test atlas-application.properties embedded in atlas-typesystem.jar (madhan.neethiraj via yhemanth)

ATLAS-645 FieldMapping.output() results in stack overflow when instances reference each other (dkantor via shwethags)

ATLAS-754 InstanceSerialization does not serialize Reference in the values array of Reference. (harishjp via sumasai)

ATLAS-543 Entity Instance requests should not require ID element for new Entities (harishjp via shwethags)

ATLAS-511 Ability to run multiple instances of Atlas Server with automatic failover to one active server (yhemanth via shwethags)

ATLAS-474 Server does not start if the type is updated with same super type class information (dkantor via shwethags)

ATLAS-392 Rename application.properties to atlas-application.properties (rishabhbhardwaj via shwethags)

(cherry picked from commit 414beba5)