Fully mavenized project

Hi Mete,

in order to have one and only one approach of building project I moved maven folder to root and deleted your custom-made folders with jars inside. Now project is fully mavenized and does not contain any libraries within, only MTX source code. Everything is downloaded and built using Apache Maven. IDE integration became automatic as well. I also added detailed information with build instructions to readme.md

Pull commit summary:
- project is fully mavenized, old sources with 3rd-party libraries removed;
- added detailed build instructions to readme.md;
- added two more of your tutorials (gameworld and jungle menu) to source code

Feel free to push.

Regards,
Vladimir