ATLAS-1232: added preCreate(), preDelete() in typedef persistence, to enable edge creation for references in a later stage

Signed-off-by: Suma Shivaprasad <sumasai.shivaprasad@gmail.com>

ATLAS-1223 removed author tag

ATLAS-1171 Structured, high-level public APIs - Fix JAXB issues with PList, SearchFilter (mneethiraj via sumasai)

ATLAS-1206 Atlas UI not working with IE or Chrome on Windows OS in Kerberos mode (nixonrodrigues via sumasai)

This reverts commit b6e0d60f.

ATLAS-1133 Jetty Server start doesn't throw exception when user-credential.properties file is not found (nixonrodrigues,svimal2106 via kevalbhatt)

ATLAS-1129 Remove notification failed logs on retry and add sleep between retries (svimal2106 via sumasai)

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-965 Old lineage still exists after dropping tables and re-creating tables with same name. (shwethags via sumasai)

ATLAS-998 determine HA mode from property atlas.server.ids, instead of atlas.server.ha.enabled (madhan.neethiraj via shwethags)

ATLAS-986 Ability to differentiate business catalog terms from traits (sumasai,svimal2106 via shwethags)

ATLAS-995 Atlas to setup ldap authentication type as either LDAP / AD or None (nixonrodrigues via shwethags)