Fixed CTD in editor when changing detailed civ placement from wheelchair to jeep

Fixed memory corruption in detailed placement due to old-inventory behavior
Added Editor.slf to files JA2/Editor will load from
Fixed FindBestPath to not search for a path to NOWHERE


git-svn-id: https://ja2svn.mooo.com/source/ja2/trunk/GameSource/ja2_v1.13/Build@1362 3b4a5df2-a311-0410-b5c6-a8a6f20db521

Editor/editscreen.cpp

@@ -262,6 +262,10 @@ UINT32 EditScreenShutdown(void)
 	GameShutdownEditorMercsInfo();
 	RemoveAllFromUndoList();
 	KillClipboard();
+	if( gfWorldLoaded )
+	{
+		KillItemPoolList();
+	}
 	return TRUE;
 }