Make logging happen to stderr instead of stdout

Add time delays to packet decoding to save on memory usage

Free resources after audio presentation in AudioPresenter::present()

Make video stream syncing a bit better

Make WorkQueue class C++11 compliant

Fix Player.cpp

Fix AudioPresenter.cpp

Change they way how ffmpeg libraries are linked in CMakeLists.txt

Update README.md with additional dependencies to install

Add additional libraries to CMakeLists.txt

Update main.cpp

Make use of AudioPresenter in Player class

Create and implement AudioPresenter class

Fix decoding speed

Fix VideoPresenter