Some C++ addons / warnings removed

[vfelsner]

Okay, this should work out better.

Changes are:

• removed copy ctors for mutexes, queues and threads
• added two FromISR getters for queues
• changed Mutex base class ctor for better handle initialization (removed a warning)
• changed some ctors to init all member variables in init lists
• Note: I'm working with C++11 so I cannot guarantee that all changes are backwards compatible with older versions. Most of them should be though. Not sure about the noexcept keyword in mutex.hpp. You can remove it if necessary.