Update README.md
adding headers to cmake for visual studio
CMakeLists : put the Gtest related stuff into a separate file.
Add the Easylogging++ header file to the CMake build process.
Add an example of how to use the logging library.

See the complete documentation at
https://github.com/easylogging/easyloggingpp.
Add basic logger setup.

Change the initialize_logger methods in src/client/logging.cc and
src/server/logging.cc to chage the logging parameters.
Merge pull request #10 from Neki/topic/bf_add_logger

Add a logger with a basic configuration. Closes #5.
Add a first definition for network events.
Add a way to deserialize events.
Add tests about serialization/deserialization.
Add stub of the client worker that communicates with the server.
Add a wrapper around the network worker.
Remove dummy file.
Add a server wrapper for events.
Update .gitignore with Vim and Vagrant files.
Add some docstrings.
Add a GameTimer class to provide reference timestamps during a game.
Add sending and receiving ping_packets.
Check protocol and version of received datagrams.
Add some logging.