Scripting/Eversong_Woods: Add quest end scripting for quest 8487.
Also fixes for quest 8488 but not completely fixed.
Scriting/Eversong Woods: Minor fix.
Core/Player: Allow questgiver, if npc, to cast quest RewSpellCast & RewSpell rather than player.
Merge branch 'master' of https://github.com/TrinityCore/TrinityCore into ghbb