Execute order before activity

This is a test to check if there is a way for units to goto and finish an activity in a single turn. Currently seems to work for sequential stuff, like "connect with roads" commands. But when
given a simple "goto and do something" the unit stays still for a turn and does both in the next turn. Thereby still taking 2 turns.

server/srv_main.cpp

@@ -1251,15 +1251,15 @@ void begin_phase(bool is_new_phase)
     whole_map_iterate_end;
     phase_players_iterate(pplayer)
     {
-      update_unit_activities(pplayer);
+      execute_unit_orders(pplayer);
       flush_packets();
     }
     phase_players_iterate_end;
-    /* Execute orders after activities have been completed (roads built,
+    /* Execute orders before activities have been completed (roads built,
      * pillage done, etc.). */
     phase_players_iterate(pplayer)
     {
-      execute_unit_orders(pplayer);
+      update_unit_activities(pplayer);
       flush_packets();
     }
     phase_players_iterate_end;