xdevs-java-2.0.0

New xDEVS/Java version, which includes:

• New Atomic::resume(double e) function to be used in all the external transition functions.
• Upgraded the deltcon definition, including the elapsed time: deltcon(double e).
• Upgraded the Simulator, which now does not reduces sigma, it is resposibility of the modeller.
• Distributed simulator improved.
• Now the Coupled model can load full XML files.