[8854] Implement heal back part of spell 48181.

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<pre>m src/game/Spell.cpp
m src/game/SpellAuras.cpp
m src/shared/revision_nr.h

[8854] Implement heal back part of spell 48181.

Signed-off-by: VladimirMangos <vladimir@getmangos.com>

I choice maybe less clear way store future heal amount, but with avoid use additional fields for auras.</pre>



Дальше... (http://github.com/mangos/mangos/commit/31640406b57cb9380ad4d5f7010727a2b2f36ba1)