C++11 Changes from TC

changes

ACE_Singleton
    We can use a static class member and function, C++11 dictates that static variables are to be initialized by only one thread
    Compiler Support:
        - GCC4.3
        - VS2013
        
Mutexes and Locks
    We can replace some of the current ACE locking mechanism with:
        - TRINITY_GUARD -> std::lock_guard
        - ACE_Thread_Mutex -> std::mutex
    Sadly C++11 doesn't still provide RW locks so we'll have to depend on Boost to do that for us: boost::shared_mutex
    Compiler Support:
        - GCC4.6
        - VS2013
        
Threading
    We can replace our current threading implementation to use C++11 instead of ACE
        - ACE_Task_Base -> std::thread with overloaded () operator instead of virtual svc() method
    Compiler Support:
        - GCC4.5
        - VS2013
        
ACE_Activation_Queue
    This is just a normal queue with some added features, i'm sure Boost has something for it (boost::interprocess::message_queue)