Core/Misc: Fix current player state when logging out

Sit should only be apply'd when player is standing.
For example when sitting on a chair when logging out, player should stay on the chair until fully logged out and not sit on the floor.
DB/Loot: Xandivious (15623) - forgot item 12002

Thanks @Aminxhm
Merge pull request #13321 from Kittnz/unit_state

Core/Misc: Fix current player state when logging out
DB/SAI: Prevent infinite loop

Just another brick in the wall... thanks @cr4st
DB/Texts: Added missing creature texts to uncomplete fixes
Core/Movement: Fix evade issue

Fix evade issue happening when an evading creature assists another one, causing it to stay in evading state forever.
Fix #4943
Scripts/Icecrown Citadel: Register Rotface's summons so they can be despawned later
Readme: Small restyle to Bountysource badge

See http://www.trinitycore.org/f/topic/10564-bountysource-get-paid-for-fixes/
Merge pull request #13327 from Nyeriah/patch-3

Scripts/ICC: Register Rotface's summons so they can be despawned later
Scripts/ToC: fixed typo introduced in cfc0c50b5e3bc84310417c5146ce0d5901e39fc5
* also update anub arak position to sniffed values

Closes #13323
DB/Misc: Chill Nymph's Do Not Speak in Common

Dont know why some of the texts used by 23678 (Chill Nymph) had language 7 when both in Broadcast text and in sniff these are language 0
Core/Spells: Fix Ebon Plague and Wandering Plague

Ebon Plague fix by @Unholychick
Wandering Plague fix by @tobmaps
Thanks to @maxxx for Ebon Plague correction.
Core/LootMgr: improved logs of missing *_loot_templates
DB/Misc: Add some missing emote texts
DB/Creature: More SAI update to CmC

By Malcrom, master of fixes.


bye master.
Core/Players: Fix players not being notified if on loading screen

Fix packets not being sent to players on loading screen even if the system supports these packets to be queued and sent till the player is in world.
There might be additional cases where this applies, please report back if you find any.

Fixes #11339
Core/Player: Additional fixes related to https://github.com/TrinityCore/TrinityCore/commit/ee5eaab598e445e3926edf6e12b1b2b4477c2594

Fix whispers to players on loading screen and few other cases.
Merge pull request #13313 from ShinDarth/335_fix

Improve logs of missing *_loot_templates
Core/ObjectAccessor: don't use singleton when calling static methods
Merge pull request #13334 from Exodius/master

Core/Spells: Fix Ebon Plague and Wandering Plague