Get Alarm updating to work properly. Previously, the state would
not change back to the real state

Get Alarm Deletion to work properly. Previously, it would not clean
up the Alarms or Sub Alarms

Get the Alarm Definition Deletion Event to work correctly. Previously
it wasn't handled

Get the Alarm Definition Updated Event to work correctly, at least
for name, description and severity

Finish implementing some TODOs in AlarmCreationBolt and add tests

Fixed some code that could handle Alarm Definition Updates in
the MetricAggregationBolt but the right calls aren't made in
the rest of the code, yet

Removed some unused or duplicated test java files

Turn the tests back on as they now run

Change-Id: Idb6c92d35e2273601411ca9c0f7d7ba45c61ad55