Implement Thread wrapper, make all components Thread-safe

[asmodehn]

We should wrap C++11 threads, to make sure the program can safely use multithread, ( even if they are not fully available in the compiler - TODO only if necessary ).

Then all components ( logger, screenrender, network, etc ) should be made threadsafe, so that they can be safely used in a heavily multithreaded software.

[asmodehn]

find inspiration in boost, C++11 standard, or there http://google.github.io/google-api-cpp-client/latest/guide/types.html