Ovale Spell Priority 6.2.2
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Changes from version 6.2.1:
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-   Druid: Don't suggest Prowl if Incarnation is active.

    Do this by pretending that Prowl is unusable when stealthed, and Ovale
    treats Incarnation as a form of stealth.

-   Force a refresh if the target or focus exists in a clearer way.

-   Fix corner case where UnitHealth() and UnitHealthMax() might return nil.
