Removed all references to the lb_usage_event table.
Added migration scripts.  Dropping lb_usage_event and event_type table (and reverse for rollback.)

Removed last vestiges of lb_usage and lb_usage_event tables in the loadbalancing_usage database.  Added migrations to rename or remove unused tables in the loadbalancing database.

Removed ip_version as a column in the AccessList entity.  Removed all usages of it.  Added migration to remove it from table.
Added better exception handling and log messages in the event listeners to be able to debug the bug better in the future.  It is not fixed though.
Throw expected exception when db returns no entries for a record in the state table.  Logging when a job is created when it doesn't exist.
clb-384-bug updateSslTermination logs now accurately report when the non secure virtual server is enabled/disabled.

clb-385 and clb-386 bug fixes.  Usage is collected before delete ssl termination and after.  When an event happens and no records are returned by SNMP, those records are now inserted with -1 anyway.

A record will be created for every host on a cluster for every event that comes in regardless of whether or not it can be retrieved by snmp or not.

Added log statements for what the exact data is being inserted into the database on events.  This helps with debugging.
clb-385 fixed BigInteger to Long cast error when a load balancer exists in stingray but not in our database.
Fixed a merge conflict and a test that didn't account for grabbing previous ssl termination fo the dataContainer.
Added use of sslusagehelper in deletesslterminationlistener.  Changed test to account for this.