[MaNGOS/WotLK] Eluna Fix some more UnitMethods

 - LuaUnit::GetRelativePoint
 - LuaUnit::IsRegeneratingHealth
 - LuaUnit::HasLootRecipient
 - LuaUnit::TalkedToCreature

Signed-off-by: Salja <salja8840@gmail.com>
Merge pull request #44 from Salja2012/master

[MaNGOS/WotLK] Eluna Fix some more UnitMethods