+ #
+ # This function launches the Nit main on a new thread.
+ # Its purpose is to allow Nit to be still operational after an exit when needed,
+ # because reloading the page may not be an option.
+ #
+ # Should only be used within the 'exit' before stopping the current thread
+ # when the Nit execution causes a crash.
+ #
+ # REQUIRE: g_nit_thread and WrapperNitMain are set.