Core/Spells: Health Funnel now always damages the warlock, even if it does not heal the pet because it's already at full health. Previously it would display the 'Miss' effect on the owner of the pet.

Fixes #9991
Add mailbox command
Renamed method
Core/Instances: Fix exploit too much players in instances/raids
Update SpellAuraEffects.cpp

Added Several Well Fed Item-Spells
Update SpellAuraEffects.cpp
Update SpellAuraEffects.cpp
Core/Guild: Implement GR_RIGHT_VIEWOFFNOTE
Core/Guild: HandleRoster should always have a valid session
Merge pull request #11377 from Yelvann/master

Core/Instances: Fix exploit too much players in instances/raids
Core/Player: Fix compile error introduced in ##11377 merge
Core/Entities: Fix combat state setting when FFA PvP flag is set

Description:
Currently there is an issue, when you are in FFA areas, but you dont have PvP flag activated.

You should get the PvP-In-Combat delay timer, but instead you just get the usual timer as if you would not fight in PvP.

Reproduction:
1) Get two players in FFA area Gurubashi arena down in the battle area (.tele Gurubashi)

2) Fight each other

3) When stopping combat, the combat state will switch off immediately. But it is supposed to switch off after some delay, because it was a PvP fight.

Closes #11103

Signed-off-by: Duarte Duarte <dnpd.dd@gmail.com>
Core/Instances: Fix memory leak in InstanceSaveMgr

Fix memory leak in InstanceSaveMgr added in 1f170c99efec6c89b9a454a3aa17511341f61659 .
Make InstanceSave::SetToDelete() private since it's not supposed to be used by anything other than InstanceSave or its friend class InstanceSaveMgr .
DB: update more creature templates
Core/SAI: Fix assertion triggered in SmartScript

Remove assertion in SmartScript added in b8625f41bd6131e7fb3ff126780da18d5d2959fd and handle SmartScripts with GetBaseObject() returning NULL , like SmartTrigger . In this case SmartScript::mTargetStorage cannot be sanitized and might contain references to free'd WorldObjects if the script doesn't last a single Map::Update() call.
Core/Misc: Fix an exploit where moving while consuming something that would fade when the player stands up would stay if the player started moving and using the effect at the same time. Thanks to @FrozenSoul and @jildor.

Fixes #6271
Core/Items: Fix an exploit where the player was able to send CMSG_SET_AMMO with items they didn't have in their bags. Only a visual bug (not sure if it gave bonuses too, which iirc do appear in later expansions).
Core/Entities: bg vehicle will also have charmer's faction (save faction before charm and restore old faction after charm)
Core/Misc: When a player changes its faction its only removed from all its arena teams if cross-faction interaction is turned off.
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