Moving project to Maven

Removing Javolution dependence.
Replaced FastList with ConcurrentLinkedQueue (instead of
CopyOnWriteArrayList or LinkedList).
Reorganized packages.
Updated build.xml.
Added Git ignore.

LIBS/COMMUNITY/BETA: Improved the way how is generated the revision number in Ant Builder, now it will get the revision number of the last change made in the specific project, and not the last revision number from whole svn.

 * Minor Update for Builders javac task to prevent Ant from creating empty dummy classes.
 * Updated Eclipse settings (same that core) for Libs Projects and Community Server.
 * Removed -switchDefault from warn settings in ECJ due is already ignored by default.

(really stupid thing to crash your server)
Exception in thread "SelectorThread-523" java.lang.NullPointerException
	at org.mmocore.network.NioNetStackList.removeFirst(NioNetStackList.java:48)
	at org.mmocore.network.SelectorThread.writeClosePacket(SelectorThread.java:471)
	at org.mmocore.network.SelectorThread.run(SelectorThread.java:205)

	* BeanShellEngine
	* JavaEngine
	* JythonEngine
	* MMOCore
	* Netcon

- Prevents disconnection code from being called more then one time(futher calls to close shall be ignored now)
- Refactoring
- Minor fix on ant buildfile

This is still pending cleanup and opts for this very reason please do not send contribs to this now(they wont be accepted unless its a bugfix).
Notice that this project may go on a unstable state, so its encoraged to use the compiled jar that come with l2j itself witch is suposed to be the lastest stable version.