implemented timeouts
better interface for Value usage
added hashcode to Value - now cache works, AttributeList refactoring
GetAttributes() for graph objects
optimized dependcies check, fixed bug with inverted check in CanCompute()
reactions recalculation after invalidation
timout recalculation now depends on real seconds
disabled db wiping on unsuccessful start
fixed db wiping on unsuccessful creation
removed null, added special undefine value
wrong toString for undefined value
separated verbose and simple log
fixed selftest
added csv fromat for snapshot
releasing v3.2.0, fixed test for selftest