Core/Spells: Fixed double heal reduction on Eart Shield (issue #4032).
Core/Spells: Fix Prayer of Mending visual bounce

Close #12855 , thanks @P-Kito
Merge 'Numielle/master' into master

This is a workaround required by the current spell system limitations.
Close pull request #11915 .
TDB 335.55 - 2014/08/24
Merge branch 'master' of github.com:TrinityCore/TrinityCore into 4.3.4
TDB 434.07 - 2014/08/24