Ovale Spell Priority 6.2.1
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Changes from version 6.2.0:
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-   Make UnitHealth() and UnitHealthMax() methods match the Blizzard API.

    These functions always return a number, even if the unit doesn't exist.

-   Force a refresh if the player if "target" or "focus" exists.

-   Properly wipe a group's return value between refreshes.

    This fixes Tiger's Fury not being suggested reported by @ShmooDude.

-   Fix logging message for the stance requirement handler.
