Create a XML Schema (xsd) for the Mobicents Diameter Dictionary (dictionary.xml)

Update Issue 32
Status: Fixed
Committed the XSD plus some fixes to dictionary.xml that were detected with it!
Diameter Stack: Peer FSM multithread problem

Update Issue 36
Summary: Diameter Stack Peer FSM multithread problem (Statistics Race Condition)
Status: Fixed
Applied patch.
Forcing maven surefire plugin to use JUnit instead of TestNG (from SCTP)
FIxing event type when there's a timeout
Adding check for peer state when selecting peers to load balance