HIVE-4171 : Current database in metastore.Hive is not consistent with SessionState (Thejas Nair via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/branch-0.12@1523102 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5239 : LazyDate goes into irretrievable NULL mode once inited with NULL once (Jason Dere via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/branch-0.12@1523119 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5241: Default log4j log level for WebHCat should be INFO not DEBUG (Eugene Koifman via Thejas Nair)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/branch-0.12@1523131 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5127: Upgrade xerces and xalan for WebHCat (Eugene Koifman via Thejas Nair)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/branch-0.12@1523132 13f79535-47bb-0310-9956-ffa450edef68