Midsummer
merge s TC

last: https://github.com/TrinityCore/TrinityCore/commit/a36925937a9edee0afc3afd49440cae4ae9a73d1
Armory revert
Arena spectator
fix mmr command
npc top 10 arenas
Cross-Faction BG
Merge s TC

last: https://github.com/TrinityCore/TrinityCore/commit/876e9dde01265edef31eb28167dd82797800bb1f