Eventmanager cleanup

docs/changelog.txt

@@ -58,11 +58,14 @@ Template for new versions:
 ## Fixes
 - `autolabor`: now unconditionally re-enables vanilla work details when the fort or the plugin is unloaded
 - ``dfhack.TranslateName()``: fixed crash on certain invalid names, which affected `warn-starving`
+- EventManager: Unit death event no longer misfires on units leaving the map
 
 ## Misc Improvements
 - `dig`: `digtype` command now has options to choose between designating only visible tiles or hidden tiles, as well as "auto" dig mode. Z-level options adjusted to allow choosing z-levels above, below, or the same as the cursor.
 - `hotkeys`: make the DFHack logo brighten on hover in ascii mode to indicate that it is clickable
 - `hotkeys`: use vertical bars instead of "!" symbols for the DFHack logo to make it easier to read
+- EventManager: guarded against potential iterator invalidation if one of the event listeners modified the global data structure being iterated over
+- EventManager: changed firing order of building created and building destroyed events to improve performance in the building location cache.
 
 ## Documentation