HUE-2391 [beeswax] install example exception handling correction
[oozie] Support exporting workflows with credentials
HUE-2484 [beeswax] Configure support for Hive Server2 LDAP authentication

This makes sure we use plain SASL auth in Hive when we have

<property>
  <name>hive.server2.authentication</name>
  <value>LDAP</value>
</property