Spells/Mage: Ring of Frost
Core/Movement

* Implemented a generic way of sending movement packets depending on who controls the unit (player or server controlled)
* Added possibility to specify extra elements in movement packets (such as speed, extra passenger guid, collision height and similar) without having to add a special element only for these
* Removed Unit::SendMovementFlagUpdate as it was something working only in 3.3.5a and earlier (no serverside HEARTBEAT opcode exists now)
Core/Players: Minor cleanup in PhaseMgr
Core/Objects

* Vehicles can now be sent with UPDATETYPE_CREATE_OBJECT2
* Corrected HIGHGUID type for guilds
Merge pull request #9009 from Souler/fix_mage_rof

[4.3.4] Spells/Mage: Ring of Frost
Core/Objects: Fixed guild guids
Merge branch '4.3.4' of github.com:TrinityCore/TrinityCore into 4.3.4
Core/PacketIO: Updated and enabled CMSG_CHANGE_SEATS_ON_CONTROLLED_VEHICLE and updated structure of movement packet sent in CMSG_CAST_(PET_)SPELL
Core/PacketIO: Corrected structure of CMSG_CHANGE_SEATS_ON_CONTROLLED_VEHICLE and SMSG_MOVE_UPDATE_RUN_SPEED
Merge branch '4.3.4' of https://github.com/TrinityCore/TrinityCore into 4.3.4