- Fix: Get Item assignement: if no valid gridno is found, let the game find one upon loading the sector instead of risking a wrong gridno assignment

- Fix: When dropping an item in strategic inventory, height values are not set 
- Fix: When looking for a valid gridno to drop items t via strategic inventory, WORLD_ITEM_REACHABLE is not reliable, as updated map topology trumps this. Instead rely upon finding a valid gridno once the sector is entered.
- Fix: when searching for a new item dropoff gridno, search for new height too
- Fix: if items are spawned mid-air, the player cannot retrieve them

git-svn-id: https://ja2svn.mooo.com/source/ja2/trunk/GameSource/ja2_v1.13/Build@8136 3b4a5df2-a311-0410-b5c6-a8a6f20db521

Tactical/Handle Items.cpp

@@ -3230,7 +3230,8 @@ BOOLEAN LookForHiddenItems( INT32 sGridNo, INT8 ubLevel, BOOLEAN fSetLocator, IN
 	return( fFound );
 }
 
-
+// Flugente 2016-04-09: this function seems dubious. The only difference from GetLargestZLevelOfItemPool is that this guarantees 0 if there is a structure.
+// That doesn't make any sense, so I'm replacing all calls of this
 INT8 GetZLevelOfItemPoolGivenStructure( INT32 sGridNo, UINT8 ubLevel, STRUCTURE *pStructure )
 {
 	ITEM_POOL *pItemPool;