Core/Spell: convert more spells to SpellScripts
DB/Misc: Add back flight aura on Wyrmrest Defender.(probably deleted on last template_addon cleanup)

Correct a SAI line for Nerub'ar Broodkeeper.
Script/Commands: Add command to join an existing group/party.
Typo fix.
Merge pull request #9016 from joschiwald/spellscripts4

Core/Spell: convert more spells to SpellScripts
SQL: Rename SQL merged in PR
Core/DBLayer: Drop support for MySQL versions <5.1

Both server and client libraries must be up to date in order to run TC.
Scripts/Icecrown Citadel: Fixed Essence of the Blood Queen interrupting player spell casts

Closes #8665
Tools: Remove a bit of spam when mmaps_generator loads vmaps
Merge branch 'master' of git://github.com/TrinityCore/TrinityCore into teste2

Conflicts fixed:
	src/server/game/Entities/Unit/Unit.cpp
	src/server/scripts/Spells/spell_priest.cpp
	src/server/scripts/Spells/spell_warrior.cpp