Add Maven to the project.

I'm posting this for Dmitry Motylev, he should get the credit.
Maven is well known project management (in terms of building) tool. The one of many great features is ability to create eclipse and idea project files.
Although those IDEs as well NetBeans may import maven project file. IMHO its better to place the one maven project file which every one may use to build project from sources or create/import it to IDE.

Another great feature of maven is dependecy management. You may replace LIB folder in your project by description of your project dependecies in the project file. Maven will automatically download all required dependecies to local repositories on first build.

I can organize current sources with maven quickly if you guys want to try :)
It's better to change one project file instead of hacking many files that descibe the project for different IDEs, is not it?