IDE change

I switched a few days ago from Dev-C++ to Code::Blocks. It is a much better IDE and I recommend to everyone who is using Dev-C++ (it's just has easy to use).
This will make the project easier to compile for linux since there's a Code::Blocks package available for linux.
Also to make the program compilable on Linux and OS X, I included the code of a library I use that is windows only (SGE).