Siegecrafter Blackfuse Adds Health

[abecx]

We had made several rounds of tuning changes to the various Siege of Orgrimmar encounters late in the 5.4 PTR process, and some health adjustments that were reverted before 5.4 was released ended up resurfacing in patch 5.4.1. Apologies for the inconvenience -- this should be corrected within the next day.