-added more documentation

-remove update() function from entity
-currently max supported components count is 64 per type

source/ecs/id_manager.d

@@ -19,7 +19,7 @@ struct IDManager
     {
         //uint current = m_next_id;
         //uint next;// = m_ids_array[m_next_id].next_id;
-begin:
+//begin:
         //if (current == uint.max)//> m_last_id)
         int current = m_stack_top.atomicOp!"-="(1) + 1;
         if(current < 0)
@@ -142,6 +142,9 @@ begin:
         return data.counter == id.counter;
     }
 
+    /************************************************************************************************************************
+    *Initialize manager.
+    */
     void initialize() nothrow @nogc
     {
         m_ids_array = Mallocator.makeArray!Data(65536);
@@ -158,6 +161,9 @@ begin:
         optimize();
     }
 
+    /************************************************************************************************************************
+    *Free manager memory.
+    */
     void deinitialize() @trusted @nogc nothrow
     {
         if(m_ids_array)Mallocator.dispose(m_ids_array);
@@ -178,6 +184,9 @@ begin:
         }
     }
 
+    /************************************************************************************************************************
+    *Optimize memory. Must be called if any ID was added and some ID will be removed.
+    */
     void optimize() nothrow @nogc
     {
         if(m_stack_top < -1)m_stack_top = -1;