More tests:

-removed some unused code
-fixed bug with struct destructors (Mallocator called __dtor instead of __xdtor)
-added unittests for events
-addded _d_eh_personality null implementation as LDC betterC bug workaround

source/ecs/manager.d

@@ -3138,12 +3138,13 @@ export struct EntityManager
     struct EntitiesBlock
     {
         ///return distance (in bytes) from begin of block to data
-        export uint dataDelta() nothrow @nogc pure
+        ///TODO: probably to remove. It's used by old code if I remeber correctly.
+        /*export uint dataDelta() nothrow @nogc pure
         {
             ushort dif = EntitiesBlock.sizeof;
             alignNum(dif, type_info.alignment);
             return dif;
-        }
+        }*/
 
         ///return pointer to first element in block
         export void* dataBegin() nothrow @nogc pure