Switch from ACE to C++11 mutexes and locks. Drop use of ACE singletons.

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Автор: namreeb


<pre style='white-space:pre-wrap;width:81ex'>Switch from ACE to C++11 mutexes and locks. Drop use of ACE singletons.</pre>


Подробнее... (https://github.com/cmangos/mangos-wotlk/commit/8ae67274a754f821f0bea6a5f771eab3df764a57)