Multiple spell reflection
Core/Spells: Fixed double heal reduction on Eart Shield (issue #4032).
Scripts/ScarletMonastery: rewritten InstanceScript and some bosses converted to BossAI and eventmap
Scripts/Ulduar: Spellscripts for Mimiron

Closes #12579

Signed-off-by: DDuarte <dnpd.dd@gmail.com>
Core/RBAC: Fix RBAC permissions

This commit adds three missing commands to the world.commands table. The RBAC.h file is updated to the correct IDs from the auth.rbac_permissions table and the world.commands table. The RBAC.h file also had to be reordered to keep it clean.

Closes #12854

Signed-off-by: DDuarte <dnpd.dd@gmail.com>
Rename 2014_08_14_02_world_command.sql to 2014_08_18_01_world_command.sql
Core/Creatures: Fixed an arithmetic error in respawn code

Creatures should now respawn correctly in their correct time.
Issue was caused by single-precision floating-point format losing precision on lower digits with high numbers, for reference http://docs.oracle.com/cd/E19957-01/806-3568/ncg_goldberg.html
Closes #12428
Core/Loot: Fixes lootable items being able to be moved in inventory, and
also loot generated that uses conditions from being saved to the DB.
Fixed tabs
Merge pull request #12875 from runningnak3d/master

Core/Loot: Fix lootable items so they can be moved in inventory, and also fix lootable items not saving items that fail conditions to the DB. Closes #10548
Core/SmartScripts: fix escort quest group-complete
Core/Spell: Rework SPELL_AURA_OBS_MOD_HEALTH

- Fixes spells where value = 1 eg.(Blood Craze, Glyph of Ghost Wolf)
when affected by auras with SPELL_AURA_MOD_HEALING_DONE_PERCENT
(Arena/Bg Dampening)
DB/Misc:Missing Emotes

Add missing emotes for Image of Loken and High Abbot Landgren for quest scripts,
Core/SmartScripts: fix escort quest group-complete
DB/Misc: Greetings texts for Dalaran Vendors

Only one not working is Tiffany Cartier even though sai is same as the rest and texts are added,

idk seems theres an invisible wall as unlike other vendors player cannot get behind counter where tiffany is either.
DB/Gameevent: Brew of the Year

Adds vendors, events, sai for faction change, change of appearance depending on location (orgrimmar or iron forge), gossip and conditions

* To Do

* At start of each monthly event mail should be sent to players who are members with a sample of that months brew, this is not currently implemented.
* Possibly missing yells from vendors saying beer but cannot confirm this.
Core/Arena: Fix exploit on delete member with team during fights.
Core/Spells: Channeled spell pushback is now affected by haste
Merge pull request #12882 from cemak/exploit_arena

Core/Arena: Fix exploit on delete member with team during fights.
Core/NetworkIO: Restored opcode and size checks lost during ace->boost changes, fixes crashes caused by players sending invalid opcodes/too big packets