Kenzi's Threat Meter: Tank Edition

Feature

• Added the target's level to the title bar.
• Boss/uncapped-level targets show the skull raid-marker icon instead of ??.
• Dead/corpse targets show grey (dead) in place of the level.
• Target level is color-coded by difficulty relative to your level (grey/green/yellow/orange/red) for enemy NPCs and enemy players, using Blizzard's actual level-scaled gray/green formula; friendly players and NPCs show gold.

Bugfix

• Fixed the title bar freezing on the last target name, caused by an unverified Blizzard API call erroring out before the title could update.