Implementation of the TimeService as described in the mailling list http://lists.jboss.org/pipermail/infinispan-dev/2013-April/012667.html

Interface can be found here: https://github.com/pruivo/infinispan/blob/ISPN-3069/core/src/main/java/org/infinispan/util/TimeService.java

Default implementation will wrap System.nanoTime() and System.currentTimeMillis().

Provide also a no-op implementation?

other suggestions are welcome.