Core/Movement:

- Don't abort relocation if movementflag restrictions were violated. There might be lag between client and server and even different parts of the core that made this approach improper.
- MOVEMENTFLAG_ROOT cannot be used in conjunction with MOVEMENTFLAG_MASK_MOVING, but it's a valid flag to receive from client.
- Fix falling to ground when unapplying fly/waterwalk aura. NOTE: This is a client-side initiated fall, in the future this should be initiated and updated by the server. (Working on it)
- Rename MOVEMENTFLAG_FALLING to MOVEMENTFLAG_FALLING_FAR
- Rename MOVEMENTFLAG_JUMPING to MOVEMENTFLAG_FALLING

Closes #5751

src/server/scripts/Outland/HellfireCitadel/HellfireRamparts/boss_omor_the_unscarred.cpp

@@ -143,7 +143,7 @@ class boss_omor_the_unscarred : public CreatureScript
                         if (Player* temp = Unit::GetPlayer(*me, PlayerGUID))
                         {
                             //if unit dosen't have this flag, then no pulling back (script will attempt cast, even if orbital strike was resisted)
-                            if (temp->HasUnitMovementFlag(MOVEMENTFLAG_FALLING))
+                            if (temp->HasUnitMovementFlag(MOVEMENTFLAG_FALLING_FAR))
                             {
                                 me->InterruptNonMeleeSpells(false);
                                 DoCast(temp, SPELL_SHADOW_WHIP);