* Core/Movement:
- Only move to point if there is a path that is not a shortcut (which will make the unit move through terrain)
- Added new function to check if there is a vmap floor without search distance
- Units that can fly, are underground but far above the vmap floor will stay underground (bronze drakes in tanaris)
- Don't remove PATHFIND_SHORTCUT from path type in some cases
* Core/Object: Ignore UpdateAllowedPositionZ for flying units.
- This will make flying units go through mountains instead of going to the top and back to the bottom to reach you.
* Core/Object: Revert some changes and let MovePositionToFirstCollision deal with a position without ground
* Missing groundZ change for objects on transport
* use CanFly instead of IsFlying
(cherry picked from commit 9fcbd8f15d)
4fcc4a3300