* Removes the SCF_REMOVEONCHANGEMAP status flag as statuses with the SCF_NOSAVE flag are removed on zone changes.
* Adds the ability to check for zone changes in unit_remove_map().
* All unit types except for players have their SCF_REMOVEONMAPWARP statuses cleared in unit_remove_map().
* Removes the hardcode for Cloaking and Cloaking Exceed.